Jacques McEneaney is rasing money for a local healthcare provider, by taking on his most extreme sea swimming challenge yet.
The 36-year-old has swum the 5km to Herm and 16km to Sark in previous years.
Jacques says more than doubling the distance, to 40km, to reach Alderney, will test his endurance.
"When you are out to sea, and it's dark and repetitive, you are really in your head.
So the hardest part is dealing with the cold and being able to break the time down."
He thinks the challenge on 22 August will take 6 hours.
He hopes to raise £1,000 for Guernsey's Health Connections on his giving.gg page.
Jacques worked for the charity, helping islanders without transport get to doctor's appointments.
He moved to England earlier this year (2024), but has returned to the island to swim.
User pays when Guernsey roads have to close
Channel Islander abandons Bordeaux as the flames 'arrive at the city's gates'
Annual Guernsey Scarecrow Festival set to raise thousands for charity
Channel Islands face 'physical' Poland test
Baby born on Guernsey's Marine Ambulance
New interim leader for Guernsey's healthcare system
Guernsey's reservoir levels falling after prolonged dry spell
Guernsey's Commonwealth flag carrier in early Games win
