swift and, in larger rivers, are often hidden beneath the surface. Diving or jumping is especially dangerous as the depth varies from season to season, and there may be hidden rocks below the surface resulting in broken necks or backs and paralysis or death. Alcohol consumption while swimming is especially dangerous, and contributes to at least 20% of deaths by drowning. References External links SwimmingHoles.info:, on-line guide to swimming holes and hot springs - directions and details on 1000 beautiful, natural places for a cool swim or a hot soak. Day Trips with a Splash: Hiking guides to swimming holes in California, Southwest, New England, Adirondacks and Appalachians. Hundreds of trips with photos, maps and GPS. Swimming Hole Heaven guide to swimming holes in Australia, New Zealand and Fiji For Australian swimming holes there is an online guide http://wildswimmingaustralia.com and an alternative guide at https://swimmingholeheaven.com/australia.htm. For swimming holes in the United States see http://swimmingholes.org. Swimming pools