extreme swimming

these pictures are from victoria's falls, yes the biggest waterfall in the world, in zimbabwe.







this naturally formed pool, right on the edge of a 420 ft waterfall, is known as the devil's swimming pool, and in september and december it is actually possible to swim to the edge of this fall. why? the rock wall that is right under the surface stops swimmers from going over when the water is low enough (hence only two months out of the year). I'm sure the first people who were brave enough to figure out you could swim here were considered demi gods.

via cup of jo.