TV daredevil Ben Fogle flew the Olympic Flame above the canopy of the world's biggest indoor rainforest on Saturday.
Presenter, writer and adventurer Fogle will pilot the Eden Project's helium-filled rainforest balloon, which is normally used by the attraction's horticulture team to prune the highest reaches of the tree canopy.
He was one of thousands of torch-bearers who will carry the flame on its journey around the UK.
Fogle, 38, said: "I am thrilled to be one of the torchbearers for London 2012 in such an iconic location.
"To be able to fly the flame in a helium balloon within the dome is a great honour and a great treat. It is an experience I won't forget."
His achievements include racing 160 miles across the Sahara desert in the notorious Marathon Des Sables.
Fogle has rowed the Atlantic Ocean in 49 days and crossed Antarctica in a foot race to the South Pole.
He has also presented numerous programmes including BBC's Animal Park, Wild In Africa, Countryfile, Crufts, One Man and His Dog and Extreme Dreams.