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76-497: As of 2020, EBRPD spans 124,909 acres (50,549 ha) with 73 parks and over 1,330 miles (2,140 km) of trails. Some of these parks are wilderness areas; others include a variety of visitor attractions, with opportunities for swimming , boating and camping . The trails are frequently used for non-motorized transportation such as biking , hiking , and horse riding . More than 200 miles (320 km) of paved trails (identified as Interpark Regional Trails) through urban areas link

152-434: A lifeguard to keep alert for any signs of distress. Swimmers often wear specialized swimwear , although depending on the area's culture, some swimmers may also swim nude or wear their day attire. In addition, a variety of equipment can be used to enhance the swimming experience or performance, including but not limited to the use of swimming goggles , floatation devices , swim fins , and snorkels . Swimming relies on

228-546: A "Report on proposed park reservations for East Bay cities, California" The EBRPD was founded in 1934, and acquired its first land two years later, when the East Bay Municipal Utility District sold 2,166 acres (877 ha) of its surplus land. The founders of the district included Robert Sibley , a hiking enthusiast, Hollis Thompson, then Berkeley City Manager, and Charles Lee Tilden , among others. William Penn Mott Jr. served as director of

304-725: A 192-acre tract known as Mollar Ranch to EBRPD. The tract adjoins the Black Diamond Mines Regional Preserve on Somerville Road in Antioch, California. EBRPD plans to use the property to create a northern entrance to the preserve. The price agreed upon is $ 305,000. Funding is expected to come from the California Wildlife Protection Act and East Bay Regional Parks Measure WW funds. EBRPD announced on February 17, 2014, that it had acquired 362 acres (146 ha) of woodland on

380-399: A 50 acres (20 ha) hillside in Antioch, between Black Diamond Mines Regional Preserve and Contra Loma Regional Park, and bought 80 acres (32 ha)near Byron Vernon Pools Regional Preserve for $ 520,000. The 50-acre hillside, valued at $ 3.5 million, was donated to EBRPD by Suncrest Homes and Antioch Holdings LLC, a Suncrest land-holding subsidiary. The Byron tract is being purchased through

456-508: A Swiss–German professor of languages, wrote the earliest known complete book about swimming, Colymbetes, sive de arte natandi dialogus et festivus et iucundus lectu ( The Swimmer, or A Dialogue on the Art of Swimming and Joyful and Pleasant to Read ). Competitive swimming in Europe started around 1800, mostly using the breaststroke, which started as the current breaststroke arms and the legs of

532-472: A bridge, and consequently bivouacked in rather careless fashion on the opposite bank; but he sent across a detachment of [Batavii], who were accustomed to swim easily in full armour across the most turbulent streams. ... Thence the Britons retired to the river Thames at a point near where it empties into the ocean and at flood-tide forms a lake. This they easily crossed because they knew where the firm ground and

608-406: A defined stroke for propulsion through the water is unnecessary, and untrained swimmers may use a ' doggy paddle ' of arm and leg movements, similar to how four-legged animals swim. Four main strokes are used in competition and recreational swimming: the front crawl , breaststroke , backstroke , and butterfly . In non-competitive swimming, there are some additional swimming strokes, including

684-404: A factor of three to achieve the same effect as reducing resistance. Efficient swimming by reducing water resistance involves a horizontal water position, rolling the body to reduce the breadth of the body in the water, and extending the arms as far as possible to reduce wave resistance. Just before plunging into the pool, swimmers may perform exercises such as squatting . Squatting helps enhance

760-421: A lower centre of gravity and higher muscle content, human males find it more difficult to float or be buoyant. See also: Hydrostatic weighing . Since the human body is less dense than water, water can support the body's weight during swimming. As a result, swimming is "low-impact" compared to land activities such as running. The density and viscosity of water also create resistance for objects moving through

836-496: A submarine while it is submerged. Due to regular exposure to large bodies of water, all recruits in the United States Navy , Marine Corps , and Coast Guard are required to complete basic swimming or water survival training. Swimming is also a professional sport. Companies sponsor swimmers who have the skills to compete at the international level. Many swimmers compete competitively to represent their home countries in

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912-443: A survival reflex. Swimming requires endurance, skill, and efficient techniques to maximize speed and minimize energy consumption. Swimming is a popular activity and competitive sport where certain techniques are deployed to move through water. It offers numerous health benefits, such as strengthened cardiovascular health, muscle strength, and increased flexibility. It is suitable for people of all ages and fitness levels. Swimming

988-468: A swimmer's start by warming up the thigh muscles. Human babies demonstrate an innate swimming or diving reflex from newborn until approximately ten months. Other mammals also demonstrate this phenomenon (see mammalian diving reflex ). The diving response involves apnea , reflex bradycardia , and peripheral vasoconstriction ; in other words, babies immersed in water spontaneously hold their breath, slow their heart rate, and reduce blood circulation to

1064-672: A temporary and interim basis to reduce public access to Mission Peak in Fremont, using a media strategy designed by political consultant George Manross. [1] [2] The parks in the East Bay Regional Park District were badly affected by the various lightning complex fires plaguing the Bay Area in August 2020. The fires enveloped the Bay Area in a layer of smoke and forced the closures of many national parks within

1140-725: A waterfront lifeguard receives more rigorous training than a poolside lifeguard. Well-known aquatic training services include the National Lifesaving Society and the Canadian Red Cross , which specialize in training lifeguards in North America. Learning basic water safety skills, such as swimming with a buddy and knowing how to respond to emergencies, is essential for swimmers of all levels. Some occupations require workers to swim, such as abalone and pearl diving, and spearfishing . Swimming

1216-564: Is a $ 3 parking fee and a $ 2 per dog fee. In 2008 the park acquired the adjoining Breuner Marsh site and added it to the Point Pinole Regional Shoreline park. EBRPD renamed it the Dotson Family Marsh . The park is a mixture of grassland and woodland, with beaches and low cliffs, and it has a particularly rich bird life, including many ducks and shorebirds , and the endangered black rail . It

1292-646: Is a compulsory part of the curriculum for primary schools. Children usually spend one semester per year learning swimming during CP/CE1/CE2/CM1 (1st, 2nd, 3rd and 4th grade). Point Pinole Regional Shoreline Point Pinole Regional Shoreline is a regional park on the shores of the San Pablo Bay , California (the northern arm of the San Francisco Bay ), in the United States. It is approximately 2,315 acres (9.37 km ) in area, and

1368-692: Is a member of the Bay Area Open Space Council . East Bay Lifeguards can work at eleven different facilities. Human swimming This is an accepted version of this page Swimming is the self- propulsion of a person through water or other liquid, such as saltwater or freshwater environments, usually for recreation, sport, exercise, or survival. Swimmers achieve locomotion by coordinating limb and body movements to achieve hydrodynamic thrust that results in directional motion. Newborns can instinctively hold their breath underwater and exhibit rudimentary swimming movements as part of

1444-540: Is also used in marine biology to observe plants and animals in their natural habitat. Other sciences use swimming; for example, Konrad Lorenz swam with geese as part of his studies of animal behavior . Swimming also has military purposes. Military swimming is usually done by special operation forces, such as Navy SEALs and US Army Special Forces . Swimming is used to approach a location, gather intelligence, engage in sabotage or combat, and subsequently depart. This may also include airborne insertion into water or exiting

1520-400: Is both the goal of much voluntary presence and the prime means of regaining land in accidental situations. Most recorded water deaths fall into these categories: Adverse effects of swimming can include: Around any pool area, safety equipment is often important, and is a zoning requirement for most residential pools in the United States. Supervision by personnel trained in rescue techniques

1596-414: Is closed to the public. In 2013, EBRPD began acquiring Roddy Ranch a 1,900 acres (770 ha) additional tract in east Contra Costa County. The new acquisition will create a nearly continuous offer zone of undeveloped land in eastern Contra Costa County from Black Diamond Mines Regional Park to Marsh Creek. In 2013, EBRPD announced plans to acquire 1,000 acres (4.0 km) of grazing land southwest of

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1672-444: Is consistently among the top public recreational activities, and in some countries, swimming lessons are a compulsory part of the educational curriculum. As a formalized sport, swimming is featured in various local, national, and international competitions, including every modern Summer Olympics . Swimming involves repeated motions known as strokes to propel the body forward. While the front crawl , also known as freestyle ,

1748-665: Is located on the Pacific Flyway , so many migrant species are also seen. The marsh provides habitat for several creatures, including the Ridgway's rail and the salt marsh harvest mouse . Whittell Marsh is the site of one of the few remaining Native American shellmounds in the San Francisco Bay Area. The park is located on the Hayward Fault , whose exact position is marked by monuments erected by

1824-436: Is often recommended for individuals with joint conditions or injuries, as the buoyancy of water reduces stress on the joints. However, swimmers with arthritis may wish to avoid swimming breaststroke, as improper technique can exacerbate arthritic knee pain. As with most aerobic exercise, swimming reduces the harmful effects of stress. Swimming also improves health for people with cardiovascular problems and chronic illnesses. It

1900-697: Is on power and water feel. The sport was governed internationally by the Fédération Internationale de Natation (FINA). In December of 2022, FINA rebranded to World Aquatics. World Aquatics recognizes competitions of the 25 meter and 50 meter pools for International Competitions. In the United States, a pool of 25 yards in length is commonly used for competition, especially in the College Level. Other swimming and water-related sporting disciplines include open water swimming , diving , synchronized swimming , water polo , triathlon , and

1976-925: Is operated by the East Bay Regional Park District . It includes the Dotson Family Marsh (formerly Breuner Marsh) and the Point Pinole Lagoon and hosts the North Richmond Shoreline Festival. Point Pinole is located in the city of Richmond, California . It is on the site of a number of former explosives factories; the largest of these was operated by the Giant Powder Company , which was relocated to this relatively remote spot following accidental explosions at its former sites in San Francisco and at Albany Hill . Giant had built

2052-565: Is part of a multi-phase project that will eventually lead to additional picnic areas, a new playground and the route to a new interpretive center for the park. At the same ceremony in April 2017, EBRPD also renamed and dedicated Breuner Marsh as the Dotson Family Marsh, honoring a family led by Reverend Richard Dotson, who had worked for many years to keep Breuner Marsh wild and open to the public, opposing several attempts to develop

2128-468: Is primarily a cardiovascular/aerobic exercise due to the long exercise time, requiring a constant oxygen supply, except for short sprints where the muscles work anaerobically. Furthermore, swimming can help tone and strengthen muscles. Regular swimming can help in weight management and contribute to maintaining a healthy body weight. (Robinson 2022) Swimming allows sufferers of arthritis to exercise affected joints without worsening their symptoms. Swimming

2204-452: Is proven to impact the mental health of pregnant women and mothers positively. Swimming can even improve mood. Although many forms of physical activity have been shown to improve bone density and health, this is where swimming has its downfalls. Due to the low-impact nature of the sport, studies have demonstrated that bone mass acquisition will be negatively impacted, which could be an issue for adolescent athletes in particular. Since 2010,

2280-805: Is required at most competitive swimming meets and public pools. Traditionally, children were considered not able to swim independently until 4 years of age, although now infant swimming lessons are recommended to prevent drowning. In Sweden, Denmark, Norway, Estonia and Finland, the curriculum for the fifth grade (fourth grade in Estonia) states that all children should learn to swim as well as how to handle emergencies near water. Most commonly, children are expected to be able to swim 200 metres (660 ft)—of which at least 50 metres (160 ft) on their back – after first falling into deep water and getting their head under water. Even though about 95 percent of Swedish school children know how to swim, drowning remains

2356-408: Is used to rescue people in the water who are in distress, including exhausted swimmers, non-swimmers who have accidentally entered the water, and others who have come to harm on the water. Lifeguards or volunteer lifesavers are deployed at many pools and beaches worldwide to fulfil this purpose, and they, as well as rescue swimmers , may use specific swimming styles for rescue purposes. Swimming

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2432-494: Is widely regarded as the fastest of the four main strokes, other strokes are practiced for special purposes, such as training. Swimming comes with certain risks, mainly because of the aquatic environment where it takes place. For instance, swimmers may find themselves incapacitated by panic and exhaustion , both potential causes of death by drowning . Other dangers may arise from exposure to infection or hostile aquatic fauna. To minimize such eventualities, most facilities employ

2508-484: The Americans with Disabilities Act has required that swimming pools in the United States be accessible to disabled swimmers. "Water-based exercise can benefit older adults by improving quality of life and decreasing disability. It also improves or maintains the bone health of post-menopausal women." Swimming is an ideal workout for the elderly, as it is a low-impact sport with very little risk of injury. Exercise in

2584-676: The Olympics . Professional swimmers may also earn a living as entertainers, performing in water ballets . Locomotion by swimming over brief distances is frequent when alternatives are precluded. There have been cases of political refugees swimming in the Baltic Sea and of people jumping in the water and swimming ashore from vessels not intended to reach land where they planned to go. There are many risks associated with voluntary or involuntary human presence in water, which may result in death directly or through drowning asphyxiation . Swimming

2660-881: The Point Pinole Regional Shoreline north of Richmond , the Coyote Hills Regional Park near Fremont , the Martin Luther King Jr. Regional Shoreline on San Leandro Bay , and the Oyster Bay Regional Shoreline south of the Oakland International Airport . The district also includes a former farm, a former coal mine , an extinct volcano, and one of the biggest dog-walking parks in the US. Redwood Regional Park contains

2736-669: The United States Geological Survey . The USGS has a seismometer posted along the Union Pacific Railroad , which divides the park from the mainland; the park is reached via a bridge across the railroad. The San Francisco Bay Trail runs through the park. The park can be reached by the AC Transit bus service, by car, or by bicycle. Pedestrian and cyclist admission is free, but there is a parking fee. The playground at Point Pinole park

2812-442: The modern pentathlon . To prioritize safety when swimming, swimmers can ensure that there are certified lifeguards present, swimming in designated areas, and being aware of potential hazards such as currents and underwater obstacles. As a popular leisure activity done all over the world, one of the primary risks of swimming is drowning . Drowning may occur from a variety of factors, from swimming fatigue to simply inexperience in

2888-611: The sidestroke . The sidestroke, toward the end of the 19th century, changed this pattern by raising one arm above the water first, then the other, and then each in turn. It is still used in lifesaving and recreational swimming. Other strokes exist for particular reasons, such as training, school lessons, and rescue, and it is often possible to change strokes to avoid using parts of the body, either to separate specific body parts, such as swimming with only arms or legs to exercise them harder, or for amputees or those affected by paralysis. Swimming has been recorded since prehistoric times , and

2964-553: The Alameda Creek Alliance, announced the acquisition of a 79 acres (32 ha) land parcel known as "Eddie's Flat, adjacent to the western boundary of Brushy Peak Regional Preserve. The district maintains a police department and a fire department. A volunteer organization that supports the work of EBRPD, the Regional Parks Foundation raises funds for the improvement of the parks. The EBRPD

3040-478: The Bay Area Ridge Trail and 3 miles (4.8 km) of other trails. Subsequently, park use was pushed back. As of 2007, the opening was expected by 2010. In 2010, EBRPD directors were expecting it would open soon. In 2011, EBRPD put the start in 2012. As of January 2015, EBRPD pointed to late 2015; while as of May 2015, the district pointed to spring 2016. A 2012 settlement agreement between EBRPD and

3116-692: The Bay Area including all parks in the East Bay Regional Parks District. The parks administered by the EBRPD vary greatly in size and character. Particularly notable are the string of parks along the Berkeley Hills above and east of both Berkeley and Oakland , including Wildcat Canyon Regional Park , Tilden Regional Park , Robert Sibley Volcanic Regional Preserve , Huckleberry Botanic Regional Preserve , and Redwood Regional Park . There are also bay shore parks such as

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3192-462: The East Bay Regional Park District acquired the property and opened Point Pinole to the public as a park in 1973. A plaque denotes the site as a California Historical Landmark . The facility's former tramway grades provide a network of nearly 20 kilometers (12 mi) of gently sloping paths for hiking , cycling and horse-riding . The other relic of the park's industrial past is the large number of eucalyptus glades groves which were planted around

3268-625: The East Contra Costa County Habitat Conservancy, a joint-powers authority created by the county, Brentwood. Oakley, Pittsburg and Next Era Energy. EBRPD announced in September 2016 that it had finalized the purchase of 76 acres (31 ha) of ranch land east of Mount Diablo, near Antioch and Brentwood. The tract was identified only as the Hanson Hills property, which had previously been bought by

3344-520: The Roddy Ranch tract for $ 5 million. It will provide hiking and recreation services, and protect habitat for rare species such as the California red-legged frog. The combined Dainty and Roddy tracts will form the future Deer Valley Regional Park near Antioch and Brentwood. James Ball Dainty, a rancher and coal miner, acquired Dainty Ranch in 1872. Antioch Unified School District agreed to sell

3420-533: The San Francisco Bay Trail. This activity included building a new main entrance and parking area. The new entrance provides a bridge over active railroad tracks, which had been a hazard for pedestrians approaching the park from the parking lot. The project cost $ 11.7 million, which was largely funded by local bond Measure CC, the City of Richmond and grants from the following grantors: The new bridge

3496-612: The Save Mount Diablo conservation group. EBRPD reported that it had paid $ 730,000 for this property, which it intends to include in the Deer Valley Regional Park. The East Contra Costa County Habitat Conservancy contributed $ 547,000 to the purchase, and the remainder was supplied from the regional park Measure WW bonds approved by East Bay voters. Deer Valley Regional Park remains in Land Bank status and

3572-549: The agency from 1962 to 1967, and oversaw a doubling of the system's acreage from 10,500 to 22,000. In June 2013, EBRPD purchased a 1,900 acres (770 ha) tract of land formerly known as Roddy Ranch in east Contra Costa County. The tract lies south of Antioch and west of Brentwood . The cost was reported as $ 14.24 million. Funding will also be provided by California Wildlife Conservation Board and an unidentified private foundation. The acquisition does not include Roddy Ranch Golf Club or about 240 acres of privately owned land inside

3648-784: The butterfly stroke. In 1873, John Arthur Trudgen introduced the trudgen to Western swimming competitions. The butterfly was developed in the 1930s and was considered a variant of the breaststroke until it was accepted as a separate style in 1953. There are many reasons why people swim, from a recreational pursuit to swimming as a necessary part of a job or other activity. Swimming may also be used to rehabilitate injuries, especially various cardiovascular and muscle injuries. Professional opportunities in swimming range from competitive sports to coaching, lifeguarding, and working in aquatic therapy. Some may be gifted and choose to compete professionally and go on to claim fame. Many swimmers swim for recreation, with swimming consistently ranking as one of

3724-749: The cold". The coastal tribes living in the volatile Low Countries were known as excellent swimmers by the Romans . Men and horses of the Batavi tribe could cross the Rhine without losing formation, according to Tacitus . Dio Cassius describes one surprise tactic employed by Aulus Plautius against the Celts at the Battle of the Medway : The [British Celts] thought that Romans would not be able to cross it without

3800-425: The current program includes events from 50 m to 1500 m in length, across all four main strokes and medley. During the season competitive swimmers typically train multiple times per day and week to increase endurance, strength, and preserve fitness. Furthermore when the cycle of work is completed swimmers go through a stage called taper where intensity is reduced in preparation for competition season. During taper, focus

3876-671: The earliest records of swimming date back to Stone Age paintings from around 7,000 years ago. Written references date from 2000 BCE. Some earliest references include the Epic of Gilgamesh , the Iliad , the Odyssey , the Bible (Ezekiel 47:5, Acts 27:42, Isaiah 25:11), Beowulf , and other sagas. In 450 BC, Herodotus described a failed seaborne expedition of Mardonius with the words "…those who could not swim perished from that cause, others from

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3952-435: The east side of Wildcat Canyon Regional Park, which will be added to the existing park. The property is hilly with a mixture of laurels, oaks and native grasses. Fauna include mountain lions, coyotes, deer and hawks. The property had been owned by a developer who had intended to build 36 houses on it, before the recent collapse of real estate prices. On April 3, 2014, two conservation groups, Center for Biological Diversity and

4028-517: The easy passages in this region were to be found, but the Romans in attempting to follow them were not so successful. However, the [Batavii] swam across again and some others got over by a bridge a little way up-stream, after which they assailed the barbarians from several sides at once and cut down many of them. The Talmud , a compendium of Jewish law written compiled c. 500 CE, requires fathers to teach their son how to swim. In 1538, Nikolaus Wynmann,

4104-494: The extremities (fingers and toes). Because infants exhibit instinctual swimming behaviors, though formal training is recommended to reinforce these abilities. , classes for babies about six months old are offered in many locations. This helps build muscle memory and makes strong swimmers from a young age. Swimming can be undertaken using a wide range of styles, known as 'strokes,' and which are used for different purposes or to distinguish between classes in competitive swimming. Using

4180-492: The factory site to buffer against potential explosions. The park features the promontory of Point Pinole, located where the East Bay shoreline turns from running south towards Berkeley and Oakland to running eastwards, inland. Geologically, it is a result of movement on the Hayward Fault which runs along its western edge, creating a low scarp. It offers superb views across the bay in all directions, towards San Francisco to

4256-492: The first dynamite manufacturing plant in the United States at a site known as Glen Canyon Park, which started up on March 19, 1868. On November 26, 1869, there was an explosion that destroyed every building on the site (including the fence around the plant). The plant was forced to move farther away from heavily populated areas. Another explosion occurred at the Albany Hill plant in 1892, before Giant built its last plant in

4332-424: The improvements required by the settlement agreement prior to opening," which had "very specific road widening requirements." The order applied to access by motor vehicles, as well as to access by non-motorized users for hiking, bicycling and horse riding, with immediate effect. "The park could remain closed for months or years," until the improvements are completed. On May 2, 2017, EBRPD announced that it had settled

4408-518: The largest remaining natural stand of coast redwood in the East Bay. Interpark Regional Trails connect various Regional Parks. Their routes may take them through other parks, along creeks and channels, or even down streets and sidewalks in urbanized areas. The list below does not include trails that exist inside single parks. Around 1995, EBRPD acquired 1,200 acres (490 ha) of the Vargas Plateau in Fremont, with 1.5 miles (2.4 km) of

4484-702: The lawsuit, and that the park would reopen on May 15, 2017. EBRPD said that it agreed to construct a paved shoulder along Vargas Road, and a vehicle turnaround on the upper part of Morrison Canyon Road. It also announced that the City of Fremont had agreed to contribute part of the necessary funds. One quarter of the District is designated as "land banks," with no public access. The conversion of that open space to public use as regional parks has no fixed time line, and may span decades. Some parcels may never be converted. Early in March 2019, EBRPD announced that it had finalized

4560-514: The lightly populated area of Pinole Point. Giant created a small unincorporated community, which it named Giant, California . Later, the Giant community became the established Croatian community of Sobrante . Although the Point Pinole factory operated until 1960, when Bethlehem Steel Company acquired the property from Atlas Powder Company, little trace of it now remains. After several years,

4636-435: The nearly neutral buoyancy of the human body. On average, the body has a relative density of 0.98 compared to water, which causes the body to float. However, buoyancy varies based on body composition, lung inflation, muscle and fat content, centre of gravity and the salinity of the water. Higher levels of body fat and saltier water both lower the relative density of the body and increase its buoyancy. Because they tend to have

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4712-415: The owners of two large nearby ranches required the construction of improvements to park access roads. EBRPD and the city of Fremont agreed in 2013 to undertake them jointly, using $ 260,000 of funding by EBRPD and performed by the city. The park opened on May 5, 2016. However, the park was closed by a court-issued preliminary injunction on July 13, 2016. The court found that the park district "did not complete

4788-513: The parks together. A destructive grass fire that broke out in Wildcat Canyon blew west into Berkeley on September 17, 1923, and burned down 640 structures, mostly homes. The East Bay Water Company was harshly criticized for its failure to deliver enough water to successfully fight the fire. Much of the problem arose from having a system of small private water companies who obtained water either from their own wells or from runoff, then pumped

4864-402: The physical activities people are most likely to participate in. Recreational swimming can also be used for exercise, relaxation, or rehabilitation. The support of the water and the reduction in impact make swimming accessible for people unable to undertake activities such as running. Swimming is one of the most relaxing activities, and water is known to calm us and help reduce stress. Swimming

4940-444: The project boundary. The East Contra Costa County Habitat Conservancy will install gates, fencing and signs around the tract in the coming year, while the sale is in escrow. The new area will likely be named Deer Valley Regional Park. In 2016, Vargas Plateau Regional Park in Fremont was the first park ever to have been shut down as the result of legal action in the more than 80-year history of EBRPD. During 2014, EBRPD cut park hours on

5016-470: The purchase of 160 acres (65 ha) in unincorporated Contra Costa County, from the Grove family. Funding of $ 1.24 million was provided by Measure WW. The parcel is about 3 miles (4.8 km) northwest of Livermore , and is bounded on the south by the proposed Doolan Canyon Regional Preserve . The other sides are bounded by private ranches and farmland. A park spokesman said that the parcel, "... will protect

5092-516: The southwest, Mount Tamalpais and the Marin Headlands to the northwest, inland across San Pablo Bay to the north and east, and Mt. Diablo inland to the southeast. Fresh and ocean waters mix at this point, so the marine life is rich; a leisure pier has been built at the end of promontory, replacing a former jetty used by the factories, and is a popular location for angling . The parks trails are almost level allowing for easy walks. There

5168-538: The third most common cause of death among children. In both the Netherlands and Belgium swimming lessons under school time ( schoolzwemmen , school swimming) are supported by the government. Most schools provide swimming lessons. There is a long tradition of swimming lessons in the Netherlands and Belgium, the Dutch translation for the breaststroke swimming style is even schoolslag (schoolstroke). In France, swimming

5244-580: The tract for commercial ventures. Rev. Dotson was able to organize residents of his own neighborhood in Richmond, Parchester, reminding them that the builder of their houses had promised they would always have access to the bay. He also recruited the Sierra Club as an influential ally in the three-decade legal fight against the developers. Dotson's group prevailed, and EBRPD acquires the marsh through eminent domain in March 2008. The district then attached

5320-402: The upper reaches of Doolan Canyon for 'habitat protection, open space preservation, and potential recreational opportunities.'" According to Sciacca's article, EBRPD had already purchased 640 acres (260 ha) adjacent to the Grove tract with funding from Altamont County (Altamont Landfill Open Space Landfill Fund, the City of Livermore, East Bay Community Foundation and Measure WW The price

5396-532: The water to the water companies' wells, Chabot and Temescal. A state law was passed that enabled citizens of Alameda and Contra Costa Counties to create a special district that could obtain water from the Mokelumne River and pump it directly to customers. The East Bay Municipal District (EBMUD) was formed and approved by the electorate. In 1930, the Olmsted Brothers and Ansel F. Hall created

5472-450: The water works out all muscle groups, helping with conditions such as muscular dystrophy which is common in seniors. It is also a common way to relieve pain from arthritis. Swimming as a sport predominantly involves participants competing to be the fastest over a given distance in a certain period of time. Competitors swim different distances in different levels of competition. For example, swimming has been an Olympic sport since 1896, and

5548-472: The water. Swimming strokes use this resistance to create propulsion, but this same resistance also generates drag on the body. Hydrodynamics is important to stroke technique for swimming faster, and swimmers who want to swim faster or exhaust less try to reduce the drag of the body's motion through the water. To be more hydrodynamically effective, swimmers can either increase the power of their strokes or reduce water resistance. However, power must increase by

5624-433: The water. From 2005 to 2014, an average of 3,536 fatal unintentional drownings occurred in the United States, approximating 10 deaths a day. To minimize the risk and prevent potential drownings from occurring, lifeguards are often employed to supervise swimming locations such as public pools, waterparks, lakes and beaches. Different lifeguards receive different training depending on the sites that they are employed at; i.e.

5700-599: Was $ 6.4 million. EBRPD says that the Doolan Canyon area is habitat for the endangered species Alameda whip snake and red-legged frog . It also supports other "special status" species and some rare alkali soil plants. The parcel will remain in land bank status until a land-use plan is written and approved. Making it into a park will require environmental assessments and community input, which could take many years, according to EBRPD. Meanwhile, EBRPD's holdings are known as Doolan Canyon Regional Preserve EBRPD acquired

5776-540: Was temporarily closed for construction from mid-August through October, 2017. During this time, the playground was resurfaced with wood fiber, equipment replaced with a net climber and a stand-up spinner, and a wheelchair-accessible path and picnic tables were added. All park paths remained open to the public during this work. On April 22, 2017, EBRPD dedicated the Atlas Road Bridge, a combination vehicle and wheelchair-compliant pedestrian bridge that connects to

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