The Devil's pool is a natural pool on the edge of Victoria falls you can swim in during certain months (I saw people doing last September).
Image is in public domain. Source: Wikipedia.
Firstly, I haven't found clear dates on when it is safe to do it (just low water level somewhere from Sept to Jan).
Secondly, What is actually involved in getting to and from the pools?
Thirdly, any figures on reported deaths?