Sir David Attenborough recounted a near-drowning experience while testing scuba gear for a 1957 Great Barrier Reef dive during a conversation with Prince William. This anecdote was shared to promote Attenborough's new National Geographic documentary, "Ocean," which highlights the devastating impact of human activity on the world's oceans. The documentary, available June 8th, showcases the drastic changes Attenborough has witnessed in ocean health over his career, emphasizing the urgent need for conservation efforts.

Prepared by Emily Rhodes and reviewed by editorial team.