From Wikipedia, the free encyclopedia - View original article
Rafting or white water rafting is the challenging recreational outdoor activity of using an inflatable raft to navigate a river or other bodies of water. This is often done on white water or different degrees of rough water, in order to thrill and excite the raft passengers. The development of this activity as a leisure sport has become popular since the mid-1970s, evolving from individuals paddling 10 feet (3.0 m) rafts with double-bladed paddles to multi-person rafts propelled by single-bladed paddles and steered by a tour guide at the stern. It is considered an extreme sport, and can be fatal.
The modern raft is an inflatable boat, consisting of very durable, multi-layered rubberized (hypalon) or vinyl fabrics (PVC) with several independent air chambers. Typical lengths vary from 6 m (20 ft) (with a width of 2.5 m (8 ft)) down to very portable single-person packrafts which may be as small as 1.5 metres (4.9 ft) long and weigh as little as 4 pounds (1.8 kg).
Rafts come in a few different forms. In Europe and Australasia, the most common is the symmetrical raft steered with a paddle at the stern. Other types are the asymmetrical, rudder-controlled raft and the symmetrical raft with central helm (oars) or Stern Mounts with the oar frame located at the rear of the raft. Rafts are usually propelled with ordinary paddles and or oars and typically hold 4 to 12 persons. In Russia, rafts are often hand made and are often a catamaran style with two inflatable tubes attached to a frame. Pairs of paddlers navigate on these rafts. Catamaran style rafts have become popular in the western United States as well, but are typically rowed instead of paddled.
Otherwise known as the International Scale of River Difficulty, below are the six grades of difficulty in white water rafting. They range from simple to very dangerous and potential death or serious injuries.
Grade 1: Very small rough areas, might require slight maneuvering. (Skill level: very basic)
Grade 2: Some rough water, maybe some rocks, might require some maneuvering. (Skill level: basic paddling skill)
Grade 3: Whitewater, small waves, maybe a small drop, but no considerable danger. May require significant maneuvering. (Skill level: experienced paddling skills)
Grade 4: Whitewater, medium waves, maybe rocks, maybe a considerable drop, sharp maneuvers may be needed. (Skill level: whitewater experience)
Grade 5: Whitewater, large waves, large volume, possibility of large rocks and hazards, possibility of a large drop, requires precise maneuvering. (Skill level: advanced whitewater experience)
Grade 6: Class 6 rapids are considered to be so dangerous that they are effectively unnavigable on a reliably safe basis. Rafters can expect to encounter substantial whitewater, huge waves, huge rocks and hazards, and/or substantial drops that will impart severe impacts beyond the structural capacities and impact ratings of almost all rafting equipment. Traversing a Class 6 rapid has a dramatically increased likelihood of ending in serious injury or death compared to lesser classes. (Skill level: successful completion of a Class 6 rapid without serious injury or death is widely considered to be a matter of great luck or extreme skill and is considered by some as a suicidal venture)
|This section does not cite any references or sources. (August 2010)|
Rafts in white water are very different vehicles than canoes or kayaks and have their own specific techniques to maneuver through whitewater obstacles.
|This section does not cite any references or sources. (August 2013)|
White water rafting can be a dangerous sport, especially if basic safety precautions are not observed. Both commercial and private trips have seen their share of injuries and fatalities, though private travel has typically been associated with greater risk. Depending on the area, safety regulations covering raft operators may exist in legislation. These range from certification of outfitters, rafts, and raft leaders, to more stringent regulations about equipment and procedures. It is generally advisable to discuss safety measures with a rafting operator before signing on for a trip. The equipment used and the qualifications of the company and raft guides are essential information to be considered.
Like most outdoor sports, rafting in general has become safer over the years. Expertise in the sport has increased, and equipment has become more specialized and increased in quality. As a result the difficulty rating of most river runs has changed. A classic example would be the Colorado River in the Grand Canyon or Jalcomulco River in Mexico, which has swallowed whole expeditions in the past, leaving only fragments of boats. In contrast, it is now run safely by commercial outfitters hundreds of times each year with relatively untrained passengers.
Risks in white water rafting stem from both environmental dangers and from improper behavior. Certain features on rivers are inherently unsafe and have remained consistently so despite the passage of time. These would include "keeper hydraulics", "strainers" (e.g. fallen trees), dams (especially low-head dams, which tend to produce river-wide keeper hydraulics), undercut rocks, and of course dangerously high waterfalls. Rafting with experienced guides is the safest way to avoid such features. Even in safe areas, however, moving water can always present risks—such as when a swimmer attempts to stand up on a rocky riverbed in strong current, risking foot entrapment. Irresponsible behavior related to rafting while intoxicated has also contributed to many accidents.
One of the most simple ways to avoid injury while out of a raft, is to swim to an eddy to avoid being taken downstream.
To combat the illusion that rafting is akin to an amusement park ride, and to underscore the personal responsibility each rafter faces on a trip, rafting outfitters generally require customers to sign waiver forms indicating understanding and acceptance of potential serious risks. Rafting trips often begin with safety presentations to educate customers about problems that may arise.
White water rafting is often played for the adrenaline rush and this can become a problem for participants' safety. White water rafting accidents have occurred but are not common.
Due to this the overall risk level on a rafting trip with experienced guides using proper precautions is low. Thousands of people safely enjoy raft trips every year.
|This section requires expansion. (October 2013)|
Like all outdoor activities, rafting must balance its use of nature with the conservation of rivers as a natural resource and habitat. Because of these issues, some rivers now have regulations restricting the annual and daily operating times or numbers of rafters.
Conflicts have arisen when rafting operators, often in co-operation with municipalities and tourism associations, alter the riverbed by dredging and/or blasting in order to eliminate safety hazards or create more interesting whitewater features in the river. Environmentalists argue that this may have negative impacts to riparian and aquatic ecosystems, while proponents claim these measures are usually only temporary, since a riverbed is naturally subject to permanent changes during large floods and other events.
Rafting contributes to the economy of many regions which in turn may contribute to the protection of rivers from hydroelectric power generation, diversion for irrigation, and other development. Additionally, white water rafting trips can promote environmentalism. By experiencing firsthand the beauty of a river, individuals who would otherwise be indifferent to environmental issues may gain a strong desire to protect and preserve that area because of their positive outdoor experience.
|Wikimedia Commons has media related to Rafting.|