8 of the toughest swim challenges in the world

From freezing lakes to choppy oceans and, erm, a desert, here are eight gruelling aquatic endurance trials for any swimmer looking for a big test.

You don't need to be Ross Edgley powering around the coast of Great Britain in a wetsuit and goggles to understand just what a physical and mental test swimming in open water can be.

Take some of the many outdoor swim challenges scattered across the world, where you not only have to contend with the elements but also go elbow-to-elbow with some equally driven competitors.

Read the full article @Redbull