Casper Steinfath is the first person to paddle part of the way from Denmark to Sweden with the hydrofoil, covering 123 kilometers in the process.
The six-time SUP World Champion had to overcome seasickness and exhaustion as well as paddling the final 10km when the wind died down to complete the marathon sea adventure.
But this achievement is only part two of a trilogy of a Viking Crossing series that Steinfath is currently conducting.
The goal is to cross all three seas around Denmark; Skagerrak, Kattegat and the North Sea. And now he can cross two off his list.
impressions of his adventure redbull.com and on magicseaweed.com.