Like a stunt from the latest Bond movie, Welsh stuntman Alex Thomson, adorned in a designer suit and sunglasses, sprints up the 30-meter mast of a boat as it cuts through the water at a 60-degree angle.
The Bangor-born sailor jumps over ropes and rigging on the way to the mast's peak. There, he pauses, coolly removes his sunglasses, pops them in his top pocket and dives into the ocean.
"It's the most stupid thing I've ever done. It wasn't safe at all," said 39-year-old Thomson.
"Only looking back do I really appreciate how dangerous it actually was."
With just two days of preparation the stunt was carried out without a harness off the beautiful Spanish coast near Cádiz.
"Obviously falling from that height from the mast onto the deck isn't advisable," he quips. "The ramifications wouldn't have been great."
Luckily on the day itself, with perfect conditions, the stunt went off without a hitch.
Having safely returned to dry land after the stunt, Thomson commented, “We have been planning this trick for a very long time. There were lots of things that could have gone terribly wrong: The wind could have pulled me off the mast and catapulted me onto the deck; I could have hit the water at the wrong angle or surfaced too quickly. These were all factors we needed to consider far in advance. Luckily (and despite my fear of heights), we succeeded in pulling it off."