Devil's Pool, bathing on the edge of Victoria Falls

Devil's Pool is a natural rock pool on the edge of the Victoria Falls, located along the Zambezi River on the border of Zambia and Zimbabwe. During the dry season, Devil's Pool is shallow enough that people can safely swim right to the edge before the waterfall drops more than 300 feet (100m).

You don't get swept down by the force of the falls because of a natural rock wall just below the surface. This is as close as you can get to the thunderous roar and permanent rainbows that adorn this magnificent Natural World Wonder.

http://goafrica.about.com/od/zambia/p/devilspool.htm