"I can't really see the wind on the water until it's quite close. I've got optic atrophy, which means I can see 6/60 - it's hard to explain but it means I can see six metres clearly and then up to 60 metres. "The biggest limiting factor is the independence. I can't drive, I couldn't do a world tour if I wanted to on a yacht - this is like a really big freedom and you can get really competitive with it."
After an encouraging showing at nationals Geddes set himself a goal to represent his country at the world championships.
"I decided then that I wanted to get more involved in it and with some help from the blind sailing fraternity I got to the trials and had a crack at that and ended up on the main sheet as a main trimmer. It's going to be fun, intense and a great experience. I'm looking forward to the cultural thrill and the competitive edge of world racing." Geddes is looking forward to racing against a number of international opponents over courses stretching up to 1km.
He said it could be difficult for new people to get involved in the sport due to the need for a boat.
"You'll find that if you're good on the crew then you'll find a position - especially if you get on with the team and things like that."
Geddes, who has managed to raise almost all of the funds he needs for the trip, leaves next week for the competition beginning on May 24.