The international scale of river difficulty is an American system used to rate the difficulty of navigating a stretch of river, or a single rapid. The scale was created by the American Whitewater Asso
Class III rapid at Canolfan Tryweryn, Wales.
Black Fork Mohican River
Madawaska River Whitney
Watauga The Big Hole
Kayak roll
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A kayak roll is the act of righting a capsized kayak by use of body motion and/or a paddle. Typically this is done by lifting the torso towards the surface, rotating the hips to turn the kayak upwards
International scale of river difficulty
…water conditions may make self-rescue difficult. Group assistance for rescue is often essential but requires practiced skills. For kayakers, a strong roll is highly recommended. Rapids that are at the lower or upper end of this difficulty range are designated Class IV- or Class IV+ respectively. Class V…
A demonstration of rolling as part of a traditional technique for hunting narwals.
An Inuk hunter with his kayak in 1854
A kayaker surfaces at the end of a roll on whitewater
Kayaker coming up from a roll on flat water