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62-655: Dranse may refer to: Dranse (Haute-Savoie) , a French river in Haute-Savoie, that empties into Lake Geneva Dranse d'Abondance , considered as the upper part of the Dranse in Haute-Savoie Dranse de Morzine , a major tributary of the Dranse that begins in Morzine at the confluence of la dranse de sous le saix and la Dranse de la Manche La Drance ,

124-495: A downstream direction, red gates in an upstream direction. The events are typically conducted on Grade/Class II to Grade/Class IV water, but the placement of the gates, and precision necessary to paddle them fast and "clean" (without touching a pole and adding 2 seconds to the total time), makes the moves much harder than the water's difficulty suggests. Pro level slalom competitions have specific length (350 cm (140 in) for kayaks – new rules), width, and weight requirements for

186-444: A flipped boater to regain an upright position. There are a variety of different styles of rolling, but in whitewater paddling the styles which offer protection of the face receive special emphasis. The roll is normally used instead of a T rescue (so named because two kayaks form a T shape when used). If the roll does not end with the kayaker upright they can set up again and make additional attempts. Multiple failed rolls usually result in

248-460: A heavy metal shaft and poly-synthetic blades. Advances in technology today include carbon fiber shafts with foam and carbon fiber blades on the high end, and low flex but light plastic on the low end, sometimes with rubber grips. Paddles with blades included historically measured over 200 cm, but now usually measure between 185 and 205 cm. Also the industry has begun to offer bent shafts that are ergonomically shaped to relieve stress off of

310-498: A kayak wedged in such a way that it cannot be removed without a mechanical advantage system, such as between rocks and/or underwater), and will resurface more quickly and controllably when coming off larger drops. Creek boats usually have increased "rocker," or rise, fore and aft of the cockpit for manoeuvrability. Extreme racing is a competitive form of this aspect of whitewater kayaking, in which kayakers race down steep sections and/or generally dangerous sections of whitewater. Slalom

372-598: A kayaker and inventor in Liberty, South Carolina further perfected rotational moulding for kayaks with his company Perception Kayaks. Bill advanced the sport of whitewater kayaking beyond any of his predecessors through consistent innovations in manufacturing and design. His patented processes are still used to this day. In 1980 the manufacturer Prijon in Rosenheim introduced polyethylene to Europe which made WW boating virtually maintenance and repair free in giant contrast to

434-520: A low of 12.7 cubic metres (450 cu ft) in August, and a small "peak" cut in November, linked to the autumnal rain. However, these fluctuations are much more pronounced over short periods and depend on the year. During times of low water, the low water discharge can fall as low as 2.5 cubic metres (88 cu ft) per second, in the case of a dry quinquennial period, and although low, it

496-412: A pole on the sidewalk and swinging around it with legs outstretched to end up running in the other direction, momentum intact. In a kayak this can be achieved by putting a vertical paddle blade in the opposing current when crossing from one current to another. The hardest part of the duffek is keeping your paddle vertical right by your knee, and keeping the power face always facing exactly perpendicular with

558-759: A river in Switzerland that flows through Martigny , that empties into the Rhone Drance de Bagnes , a river in the Val de Bagnes in Valais, Switzerland, and the main tributary of La Drance (Valais) and an outflow of Lac de Mauvoisin Drance d'Entremont , a river in the Val d'Entremont on the north side of the Great St Bernard Pass , and a main tributary of La Drance (Valais) Drance de Ferret ,

620-562: A river in the Val Ferret in Valais, Switzerland and a tributary of the Drance d'Entremont See also [ edit ] Delta de la Dranse National Nature Reserve , a nature reserve at the mouth of Dranse in Haute-Savoie [REDACTED] Topics referred to by the same term This disambiguation page lists articles about distinct geographical locations with the same name. If an internal link led you here, you may wish to change

682-446: A selected few. 1905, Alfred Heurich, an architectural student from Leipzig , Germany , invented the "Faltboot", a folding kayak called Folboat in the US . Heurich went on to paddle over 100,000 km (62,000 mi) on rivers and lakes. 1907, Alfred Klepper, a master seamster from Rosenheim , bought the patent, improved the rigidity with a lever system and started production. Born

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744-519: Is a high-volume river, as are all the rivers which originate in the Alpine mountain ranges . Its discharge was observed for a period of 97 years (1906–2003) in Reyvroz , a locality in the department of Haute-Savoie situated on the southern bank of Lake Geneva at the same elevation as its outlet. The drainage basin for the river is in its totality 495 square kilometres (191 sq mi), which

806-504: Is a technical competitive form of kayaking, and one of the whitewater events to appear in the Olympic Games . Racers attempt to make their way from the top to the bottom of a designated section of river as fast as possible, while correctly negotiating gates (a series of double-poles suspended vertically over the river). There are usually 18–25 gates in a race which must be navigated in sequential order. Green gates must be negotiated in

868-430: Is all about always having your paddle in the water, however holding the paddle properly is best learned in the air. To properly hold a paddle you should try to make a box with your arms and paddle, shaped with 90 degree angles at your elbows and wrists. The blades on the paddle need to be equidistant from each hand, and the power face of the blade, or scoop, should be facing your stern. This position ensures your hands are in

930-436: Is almost the forward stroke exactly backwards, although often it is shorter and the paddler may need to time "peeks" at his destination during the stroke to ensure tracking. This is an important stroke to learn as paddlers move from flat-water to whitewater, as it is a flip prevention stroke. The low brace is a manipulation of the ready position in kayaking. With the box commented on above, the paddler rotates their elbows up so

992-399: Is an onomatopoeia which mimics the sound that is usually created when the hull of the kayak makes contact with water at the base of the waterfall. Another type of boof is the "rock boof" which is a move that uses a glancing impact with a boulder at the top of a ledge to bounce the boater over a downstream feature, often finished with a mid-air eddy turn. Rock boofs result in sounds both at

1054-851: Is as old as the Stone Age . The raft , the catamaran , the canoe and the kayak evolved depending on the needs and environment of the indigenous peoples in different parts of the world. The modern day kayak most likely originated about 8,000 years ago along the Siberian coast line by the Yupik and then transformed from the open canoe, via the Aleut and Inuit , into an enclosed kayak. The first boats made were hard to sink because they contained inflated seal bladders, which made them ideal for navigating whitewater. The Greek , Herodotus , 484-425 BC, wrote in his travel diaries about boats with which merchandise

1116-486: Is considered normal in the regions of the Alps and Prealps. In terms of floods which, although uncommon, can be very important, measures with certain "eau du midi". The maximum instantaneous discharge for a two-year (P 2 ) and five-year (P 5 ) flood events are 180 and 220 cubic metres (6,400 and 7,800 cu ft) respectively. The ten-year flood event (P 10 ) is 250 cubic metres (8,800 cu ft) per second,

1178-402: Is likely to include running ledges, slides, and waterfalls on relatively small and tight rivers, though some will allow for very large and big volume rivers in their definition. Kayaks used for creeking usually have higher volume (more gallons or litres of displacement) and more rounded bow and stern , as these features provide an extra margin of safety against the likelihood of pinning (getting

1240-442: Is most common. Most have the ability to be "welded" after significant damage. Earliest models were typically fiberglass and it was common to join a club to learn how to build your own. Today most composite kayaks are reserved for slalom or squirt boating. There are three main categories of differences between kayak paddles: composition, twist/feather, and shaft shape/length. Earlier paddles were often made of wood and then later with

1302-415: Is not quite three times the surface area of the city of Paris . The annual average discharge of the river at Reyvroz is 20.1 cubic metres (710 cu ft) per second. The Dranse is a typical seasonal river regime , with depends slightly on a small rain component. It exhibits sharply delineated seasonal fluctuations in discharge, which is characteristic of Alpine waterbodies . High flows occur in

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1364-410: Is the duffek. In a river current generally moves downstream, but behind rocks or on shore the water may be still or actually move upstream. When a paddler moves from one of these currents to the other they can use the duffek stroke to quickly turn their boat into the direction of the current. A good visual representation of the duffek in real life is thinking about someone running down a sidewalk, grasping

1426-422: Is the essential - and some would say most artful - form of kayaking. Whereas its derivative forms (described below under the headings of Creeking, Slalom, Playboating and Squirt boating) have evolved in response to the challenges posed by riverrunning, such as pushing the levels of difficulty and/or competing, riverrunning, of its own right, is more about combining one's paddling abilities and navigational skills with

1488-550: The Austrian , Edi Hans Pawlata reinvented the Eskimo roll . 1927, Franz von Alber, and then Klaus and Arndt von Rautenfeld, claimed to have independently developed a roll with their sea kayaks. In the early 1930s, Walter Frentz, Herbert Rittlinger and a handful of others became pioneers and advocates of WW kayaking with documentaries and books. 1933, Adolf Hitler started to dissolve kayak clubs. They did not serve his plan and

1550-538: The Colorado River in the Grand Canyon, accomplished this feat with hand paddles crafted by her father. Boofing, in whitewater kayaking, refers to the raising of the kayak's bow during freefall, while descending a ledge, ducking behind a boulder, or running a waterfall . This technique is used to avoid submerging the bow of the kayak by ensuring it lands flat when it hits the base of the waterfall. The term

1612-543: The Faltboot which had started it all. 1980 Holger Machatschek, together with ESKIMO kayak company in Landsberg, Germany, developed the first 2.2 m (7.2 ft) playboat called Topolino which galvanized kayaking into many new and exciting forms of extreme sports . There are five "sub-categories" in whitewater kayaking, each typically utilizes a unique kayak design: Riverrunning (practitioners use one word)

1674-653: The French National Service for Water Data and Common Repositories Management. The Dranse empties into Lake Geneva and forms a delta , which is integrated into the Delta de la Dranse National Nature Reserve , situated to the east of the commune of Thonon-les-Bains , which although small at an area of 53 hectares (130 acres), offers an incomparable botanic diversity . The river is 49.3 kilometres (30.6 mi) long. Whitewater kayakers and commercial rafting companies frequently run this river. The Dranse

1736-467: The June 1963 value is comparable to a vicennial flood event, and is thus considered not that exceptional. The discharge volume of Dranse is augmented by the abundant precipitation in the northern Alps. The runoff curve number for its drainage basin is 1,285 millimetres (50.6 in) annually, which elevated, is three times greater than the average for all of France. The specific discharge (Q sp ) of

1798-406: The boat and paddle there are several other pieces of gear that are necessary for whitewater paddling. A buoyancy aid (BA) or personal flotation device (PFD), helmet, and spray deck (sometimes known as a sprayskirt) are considered essential while a throwbag , knife, and safety whistle are recommended as standard pieces of safety gear. Many people also wear a nose clip since flipping the boat

1860-406: The boat and the paddler submerge completely into the river's flow for several seconds and up to half a minute. ‹The template How-to is being considered for merging .›   A variety of different paddle strokes are used to guide, propel and turn the boat in various ways. Some strokes are used in combinations to perform manoeuvres such as the "S-turn". Kayaking, especially in whitewater

1922-428: The boater will pivot the boat to change its direction, and by so doing, diminish the boat's speed and momentum.) A principal design characteristic of riverrunning kayaks (as well as for their closest cousin the slalom boat) is their comparatively longer length and narrower breadth (generally minimum 285 cm in length and maximum 63 cm in breadth). The longer length at the waterline not only helps to carry speed but

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1984-415: The boats, which will be made out of kevlar/fibreglass/ carbon fiber composites to be lightweight and have faster hull speed. Plastic whitewater kayaks can be used in citizen-level races. Playboating, also known as Freestyle or Rodeo, is a more gymnastic and artistic kind of kayaking. While the other varieties of kayaking generally involve going from Point A to Point B, playboaters often stay in one spot in

2046-431: The correct location on the shaft. The forward stroke is the most intuitive paddle stroke in kayaking although proper technique is important to master. To do a forward stroke the paddler holds his paddle vertically, with one hand close to the face, and the other hand outstretched outside of the knee. The paddle enters the water near the toes of the paddler, and the paddle is pushed out with the upper hand and pulled in with

2108-466: The current you are grabbing. In other words, the scoop of the blade always needs to be facing where the current is coming from. This is tricky because as you turn your blade will turn with you unless you twist your wrists to keep it static. If done correctly paddlers can enter and exit opposing currents with one duffek that can be turned into a powerful forward stroke upon completion. Rolling is an essential skill in whitewater kayaking. This technique allows

2170-535: The force exerted by the water on the upper extremity, predominantly the shoulder, or collisions with objects during 'swimming' incidents. On the other hand, acute rafting injuries more commonly stem from contact with another rafter's paddle or equipment, followed by incidents where the rafter collides with an object while 'swimming.' Chronic injuries are relatively rare in rafting, contrasting with kayaking where they account for 25% to 40% of all injuries, primarily manifesting as shoulder or wrist complaints. In addition to

2232-464: The former Drantia , based on the hydronym dur- , dora and the suffix -antia . The Dranse is formed from the combination of three mountain rivers originating from the peaks of the upper Chablais Alps , which converge 9 to 10 kilometres (5.6 to 6.2 mi) upstream from the delta : The Dranse d'Abondance is considered the higher-ordered stream of the Dranse. The Dranse de Morzine is consequently considered its tributary , according to Sandre ,

2294-457: The forward sweep. In paddling momentum is the paddlers best tool for successful advancement, and so ruddering or back sweeps as a way of turning, results in decreased momentum and a higher chance of getting flipped or caught in a hole or wave. To forward sweep right the paddler will need to bring their left blade to their toes like they would in a forward stroke although this time they will drop their right hand from their face, to their biceps, making

2356-425: The high brace to right themselves. By dropping their elbows and reaching the necessary blade to the surface on the side they are flipping on the paddler can use the power face to pull down on while doing a side crunch to redistribute their weight over their boat. The High Brace is exactly the same technique as the C to C roll when the paddler is closer to being upside down. In order to turn the paddler needs to master

2418-746: The impact on the sport was devastating. World War II brought the paddle sport to a total halt. 1946–48, In some regions, the Allies gradually lifted the ban on river travel in Germany. Paddle clubs were again allowed to form. 1952, Walter Frentz, published an inspiring book In den Schluchten Europas (In the Canyons of Europe) that gained popularity. The book was based on his river trips prior to World War II. Publications in those days told great stories with awesome pictures of first descents but with little information regarding river conditions. The tough times of

2480-693: The kayak/canoe and in 1860 started building six boats that closely resembled Inuit canoes/kayaks, weighing approximately 36 kg (80 lb). In 1866 he published the book A Thousand Miles in the Rob Roy Canoe . The timing was right and the book became a resounding success. With the Industrial Revolution leading to more leisure time in the middle of the 19th century, people in Europe started to enjoy floating down rivers in various contraptions taking in nature previously only available to

2542-410: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Dranse&oldid=821187926 " Category : Place name disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Dranse (Haute-Savoie) The name " Dranse " comes from

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2604-546: The longer arcs thus created between stem and stern allow the boater to more efficiently and gracefully carve into, through and out of eddies and other currents. Creeking is perhaps best thought of as a subcategory of river running, involving very technical and difficult rapids, typically in the Grade/Class IV to VI range. While people will differ on the definition, creeking generally involves higher gradient (approaching or in excess of 100 ft per mi (19 m per km)), and

2666-423: The lower hand, keeping the paddle vertical. To incorporate more than just the arms and upper back, paddlers should twist their torsos to reach and twist back while pulling to maximize their reach and power. The blade should leave the water by the paddlers' hips, and the low hand comes up to the face, with the face hand reaching out to outside the knee on its side in order to initiate the next stroke. The back stroke

2728-430: The most of the differential forces in the river's currents. For example, instead of spinning or pivoting the boat to change its direction, a riverrunner will drive the boat in such a way as to make use of the river's surface features (e.g. waves, holes and eddylines) thus conserving the boat's speed and momentum (this is in particular contrast to slalom racing, where, in the attempt to negotiate certain kinds of slalom gates,

2790-405: The movements and environments of rivers themselves. Important to a riverrunner is the experience and expression of the river in its continuity rather than, say, a penchant for its punctuated "vertical" features (e.g. standing waves, play-holes and waterfalls). As for kayak design, a "pure" riverrunning boat can be said to have "driving ability" - a blend of qualities that enables the paddler to make

2852-477: The paddle more horizontal. They will then move their blade in a semi circle around their boat finishing at their stern. The back sweep is the forward sweep in reverse, move the blade from the stern to the bow in a semi circle. Matching forward sweeps and back sweeps together is the fastest way to turn a boat if needed. When paddling downstream paddlers can use some advanced paddle strokes along with differing currents to quickly turn their boat, one of these strokes

2914-433: The paddler running out of breath and "swimming" (a swim means exiting the boat completely and entering the water). Handpaddling refers to paddling without a conventional paddle. Instead, the kayaker uses plastic hand paddles. This technique is appropriate for paddlers that prefer to roll without a paddle (hand roll). Audrey Adamchak, age 14, thought to be the youngest woman to kayak the classic 225 miles whitewater stretch of

2976-662: The paddlers wrists. Many companies also offer specialized rubber grips to ease the paddlers grip and provide a place to feel where hands should hold the shaft. Small and regular shaft thicknesses may be available as well to offer smaller paddlers more comfort while gripping the paddle. Kayaking and Rafting are considered an extreme sport. While considered not too extreme or difficult, on occasion it can be dangerous and cause serious injuries. Kayaking and rafting exhibit distinct injury rates, with kayaking experiencing 3 to 6 injuries and rafting ranging from 0.26 to 2.1 per 100,000 boating days. In kayaking, acute injuries typically result from

3038-543: The post war era had come to an end and people traveled abroad again looking for adventures with Folboats and canoes. 1955, Herbert Baschin in Stuttgart built the first polyester /fiber kayak. Despite the much improved manoeuvrability and material, Baschin's hard shell was received with skepticism by paddle sport enthusiasts who were in love with their folboats and depended on public transportation. The ice broke when owning an automobile became affordable. The hard shell kayak

3100-424: The power face faces the sky. To brace the paddler takes "the box" and moves it out to the side they are falling over on. Keeping their elbows high they can slap the outstretched blade down on the water and push down and slide it back towards their boat as they redistribute their weight over of their boat, stopping themselves from flipping over. If the paddler is already well on their way to flipping over they may use

3162-451: The river (usually in a hole, pourover or on a wave) where they work with and against the dynamic forces of the river to perform a variety of manoeuvres. These can include surfing, spinning, and various vertical moves (cartwheels, loops, blunts, pistol and donkey flips, and many others), spinning the boat on all possible axes of rotation. More recently, aerial moves have become accessible, where paddlers perform tricks having gained air from using

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3224-611: The river reaches 40.7 litres (10.8 US gal) per second and square kilometer of the basin. Whitewater kayaking Whitewater kayaking is an adventure sport where a river is navigated in a decked kayak . Whitewater kayaking includes several styles. River running; where the paddler follows a river and paddles rapids as they travel. Creeking usually involving smaller, steeper, and more technical waterways. Creek boats tend to be short but high volume to allow for manoeuvrability while maintaining buoyancy. Slalom requires paddlers to navigate through "gates" (coloured poles hanging above

3286-546: The river). Slalom was originally the only whitewater event to be in the Olympics but Kayak Cross - a new subcategory of slalom involving gates and more natural whitewater elements - featured in the 2024 Paris Olympics. Play boating involves staying on one feature of the river and is more artistic than the others. Squirt boating uses low-volume boats (usually made specifically for the paddler) to perform special moves in whitewater features. Paddling on rivers, lakes and oceans

3348-594: The speed and bounce of the wave. Kayaks used for playboating generally have relatively low volume in the bow and stern, allowing the paddler to submerge the ends of the kayak with relative ease. Competitions for playboating or freestyle are sometimes called whitewater rodeo in the US, but more frequently just referred to as freestyle events in UK and Europe. Squirt boating incorporates the use of low-volume boats to perform special moves in whitewater features. Squirt boating predates, and

3410-516: The springtime and are attributed to snowmelt . These accompany average monthly discharges of around 30 to 40 cubic metres (1,100 to 1,400 cu ft) per second from April to June (the maximum being reached in May). At the end of June, discharge rates sharply drop while the volume moves downstream. From the end of July to the end of February discharge is continuous, fluctuating between 12.7 to 17.1 cubic metres (450 to 600 cu ft) per second, with

3472-462: The top of the drop (boat impacting rock) and the bottom (boat bellyflopping into the water). Whitewater kayaks differ from many other types of recreational kayaks in that they are intended specifically to be used in rapids. As a result, they have several features that make them safer and more durable in this environment. It is not recommended to use touring kayaks in whitewater rivers. Rotomolded plastic that can withstand repeated impacts and abrasion

3534-480: The twenty-year flood event (P 20 ) 270 cubic metres (9,500 cu ft), and the fifty-year flood (P 50 ) 310 cubic metres (11,000 cu ft). The highest instantaneous flow recorded by the Reyvroz station was 273 cubic metres (9,600 cu ft) per second on the June 1, 1963, while the maximum daily value was 229 cubic metres (8,100 cu ft) per second on September 22, 1968. For comparison,

3596-430: Was brought from Armenia to Babylon . The boats were made of a wooden framework that was covered with animal skins. Mules hauled the precious skins back to Armenia. The Russian , Grigori Ivanovitch Langsdorff , reported from his trip around the world (1803–07) on the ease and elegance of paddling Eskimo (Inuit) kayaks/canoes. The Scot , John MacGregor , came back from his North American trip full of excitement about

3658-415: Was critical to the foundation of, playboating. Squirt boats are often fairly long and flat, with low volume throughout the design. Because squirt boats are custom built to the paddlers weight, inseam, and personal preference, they are constructed with composite materials instead of plastic. Many squirt moves are intended to submerge all or part of the craft and paddler, such as the "mystery move," in which both

3720-531: Was easily hauled to rivers and remote put-ins that were not accessible before. In the late 60s the WW sport started to spread from Europe around the world and transformed from adventure trips into a hardcore sport. With it came safety consciousness and protective gear. 1973, Tom Johnson, a racer and trainer from Kernville, California designs and markets the Hollowform: the first roto-moulded polyethylene boat. It

3782-473: Was mass-produced by a garbage can manufacturing company. These virtually indestructible boats revolutionized the sport and quickly took off in California . Paddlers no longer had to constantly repair their boats during and after trips. They began to be able to use rocks as part of the strategy of negotiating difficult rapids. Hard runs became more accessible to less-skilled paddlers. In 1978, Bill Masters ,

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3844-523: Was the Western culture 's invention of a paddle craft that for the first time in human history that allowed hardy enthusiasts to see wild river sections and canyons never before seen by the human eye. The design not only made it suitable for whitewater (WW); it was also easy to travel with and was affordable. World War I stopped any progress. 1920s, boating on WW with Folboats developed. Boaters flocked to rivers and lakes by train or bus. During that time,

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