I'd like to swim a bit to cool down when SUPing, but I've been already in an awkward situation when I've underestimated wind - the board was quite away from me after a while and I've got to swim fast to get to it.
I was thinking about somehow prolonging the leash to be able to swim a bit around the boat (20-30 meters) but honestly I'm not sure what the options could be. I was thinking about using 'cowtail rope': , but I'm not sure if it's strong enough (as the name says, it's designed to hold cow's tail while milking, however it's quite strong and robust and is used often by scuba divers to hold their stuff).
Another option would be the freediving leash, but it would be quite awkward since it's designed to be attached to the 'anchor' and go vertically under water and not to be used to swim on the surface.
Are there any tested options?