Pioneering broadcaster recalls incident during discussion with royal about latest documentary, Ocean

Sir David Attenborough almost drowned when testing a scuba-diving helmet for his 1957 dive on the Great Barrier Reef, the broadcasting veteran has revealed in a discussion with Prince William.

Discussing his latest documentary, Ocean, the pioneering film-maker described the incident to the Prince of Wales.

“It’s certainly a strange thing to do,” said the 99-year-old Attenborough, as he nostalgically fitted an original version of Jacques-Yves Cousteau’s open-circuit scuba helmet over his head.

“Don’t do that, David,” laughed the prince. “You won’t get it off.”