Really nice, slow, and meditative. I liked how simple and tactile the boat felt to navigate. Felt good to fiddle with the sail and jib to go as fast as possible. Also quite entertaining when you get to an island and have to frantically adjust to avoid / recover from a collision.
I only have a few quibbles: tying interaction to jump leads to some mishaps, swimming feels too bouncy, and maybe it'd be nice to have some kind of speed indicator (diegetic or not) to let you know if you're eking out as much power from the wind as you can.