A group of UK adventurers have made history as the first Brits believed to have freedived in Antarctica. Will Glendinning, 40, made the treacherous journey to the planet’s most southerly continent with friend Dave Crump and four other crew members. Freediving involves going underwater without breathing equipment and relies on the diver’s ability to hold their breath for minutes at a time. Classed as an extreme sport, it is especially dangerous in the Southern Ocean, with icebergs “the size of small countries” threatening to collapse and crush divers beneath their weight. As a result, only around 10 people are known to have gone freediving in Antarctica.