A daredevil combined his love of sailing and kite-surfing to pull off a death-defying stunt while dressed in a suit.
Alex Thomson, who is an established thrill-seeker in the sport of sailing, attached himself to a racing boat via a rope to the top of its mast.
He then kite-surfed behind the yacht on the choppy water off the coast of Alvor, Portugal before utilising its speed to propel himself 280ft into the air.
The footage shows the daredevil hurtling above the boat - a height equivalent to a 25 storey building - before detaching himself from it when reaching the peak of his flight.
He then expertly controls his descent back down, landing the kiteboard on the water in true Alex Thomson style - all while wearing a suit.
The stunt, which has been dubbed The Skywalk, is the third in a series of death-defying feats of bravery performed by the 41-year-old yachtsman.
A previous stunt, entitled The Keelwalk, saw Alex standing on the keel of a racing yacht heeled over and sailing at high speed in waters near the Isle of Wight.
While The Mastwalk saw the yachtsman running up the 30-metre mast of a moving boat as it hung above the ocean at a 60-degree angle.
Speaking after his latest stunt, Alex said: 'The previous two stunts that we carried out were so successful that, as a team, we just knew we couldn't stop there.
'We were all in agreement; we wanted to do something even bigger and better.
'I've always had a love for all things wind-powered so naturally a stunt which involved kite surfing was the next step.
'The idea of combining two of my favourite sports and executing something which, to our knowledge, had never been done before was really exciting.
'The team and I have been planning the stunt for a long time. There were lots of things that could have gone wrong.
'Perhaps most concerning for the team; was the prospect of an uncontrolled descent, causing me to come back down too fast.
'Water can be as hard as concrete if hit with enough velocity, so this was one of the most dangerous aspects of the stunt.
'But I had a brilliant team around me and, with their help; we managed to pull it off.'
'What's next? Who knows?'
A total of 35 people were involved in the planning, co-ordination and execution of the latest stunt, including professional kite-surfer Susi Mai and kite-surfing coach Ray Kasper.
Alex will now compete in the pinnacle event of the Ocean Masters race calendar - the Vendee Globe - later this year, a race which begins on November 6.
The non-stop, solo, unassisted, round the world competition takes approximately 80 days to complete.
In the last edition of the race, back in 2013, Alex finished in third place. This time around he is determined to be the first Brit to win the prestigious title.