It is the widest curtain of falling water in the world from February to April which is right after the African rainy season.
One of the world's mightiest waterfalls is in east-central Africa, on the border between Zambia and Zimbabwe (formerly Rhodesia).
The normally placid Zambezi plunges over a cliff into a 100-meter (328-foot) deep gash between Victoria Falls and a matching cliff across the way.
The churning waters -- two kilometers (1 1/4 miles) wide at the point of the falls -- rumble and roar and tumble through a narrow exit into the Batoka Gorge on its way to the Mozambique Channel of Eastern Africa.
The Victoria Falls Bridge across the Zambezi River, connecting Zambia and Zimbabwe.
As you stand this close to such raw, natural beauty, you can barely hear yourself screaming above the sound of the water
The low water season is from September to December
From September to December, due to low water levels, it is possible to swim at the edge of the falls in a naturally formed safe pool, accessed via Livingstone Island.
Wikitravel says: You will have the opportunity to stand in shallow water, 2 inches (literally) from where the water gushes over the edge of the falls, and swim in Devil's Pool, a reasonable current-free pool a couple of feet from the top of the falls, close enough to lean over the edge. This makes fantastic photo opportunities with a permanent rainbow from the mist of the falls behind you".
Many of you may think it is a trick. Well, another Flickr user took pictures from the other side, and this is the result ("Putting the maniacs into context):