There are a couple of places where visitors can enter the river and literally walk right up the edge of Victoria Falls and look over the edge. It is one of my most exciting travel experiences. I simply reasoned that the guides do this all the time, they know what they are doing, and if lots of tourists were falling over the edge we would be hearing about it. The fact is that due to placement of stones, the waters above the falls are not rushing fast at all places, and you can do it safely, with the most spectacular views. It is not allowed to carry any extra items, such as a cell phone, so the guide does the pictures and gets them to you later.