Wild swimming: Victoria Falls

There's swimming, there's wild swimming and then there's the ridiculously wild variety. No river, lake or sea can compare to taking the plunge at the edge of Victoria Falls, the world's largest waterfall.

Every year, during the dry season - between September and December - the lower water level helps create the Devil's Swimming Pool, a natural water pool next to a 110 metre-drop at the edge of the mile-wide falls. So instead of being swept over by the torrent on Zambia's border with Zimbabwe, a rock lip means you can press against the edge watching around 500 million litres of water plummet down.

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