The first human in history to swim around Great Britain. Then he went and did Iceland, the Yukon, and a few things that shouldn't be possible with one body.
Ran a full marathon around the Silverstone circuit pulling a 1,400 kg Mini — after training by dragging it 16 miles at a stretch. Raised money for the Teenage Cancer Trust and three other charities.
Completed the world's longest rope climb: the exact height of Mount Everest climbed on a single rope, over and over, in 19 hours and 54 minutes.
Became the first person in history to swim around Great Britain — the World's Longest Staged Sea Swim. Six hours swimming, six hours sleeping, repeat. Fifteen thousand calories a day. The salt disintegrated his tongue; he finished anyway. Voted WOWSA Performance of the Year.
First person ever to swim the length of the English Channel — as a side quest. He never celebrated: "only a warm-up," he joked, with 1,442 miles still to go.
Accidentally became the fastest person to swim it — more than halving the previous record. He only found out afterwards; they were just swimming fast enough to outrun an Arctic storm.
Swam continuously for two days in the largest lake in the UK by volume, having gained 10 kg for insulation. Ended by cellulitis and hypothermia — still the longest anyone has survived Nessie's waters in a wetsuit.
Attempted an ultra-marathon lake swim during the hottest month ever measured on Earth, in water above FINA's safety ceiling. Pulled out with heatstroke after 32 hours — having gone further than the attempt was ever supposed to go.
Longest continuous river swim ever: no stops, no sleep, no touching the boat. 8°C water, white-water rapids, bears and wolves — fueled on 20,000 calories a day and 15 kg of purpose-gained body fat.
Spent two years rebuilt by shark scientists to out-perform ocean predators: polar leap of a great white, sprint of a mako, appetite of a tiger shark — gaining 10 kg in 24 hours, the highest intake ever recorded at his university's sports lab.
Became the first person to swim the entire coastline of Iceland — waters regularly below 5°C, North Atlantic tides, jellyfish and total isolation. Collected climate and eDNA data with the University of Iceland along the way.
Barefoot. Ran a thousand miles in a month carrying a 50 kg backpack.
Carrying a tree. Completed an Olympic-distance triathlon lugging a live 45 kg tree.
Towing a tree. Swam across the Caribbean Sea behind it, attached by rope.
Marathons. One per day, every day, for a month.
Non-stop. Swam two straight days at the Royal Marines' Commando Training Centre.
Fjord swim. Coached Chris Hemsworth across a 500 m arctic fjord on seven days' training.
"It's my hope that people remember it as an experiment in both mental and physical fortitude."— Ross Edgley, Margate, 4 November 2018