Good Graphics, nice movement and smooth animations.
There are upgrades in the game which you can use on your boat so that it floats higher or lower. But first, you have to finish some of the missions on the board. A little info on that would have been helpful (like a little sign above the plattform with the upgrades with the words "Boat Upgrades after Level #3" or whatever :3. Otherwise one might get frustrated trying to reach the lower / higher islands right at the beginning and always getting pushed back by the wind ... (also happened to me)
Other than that: really relaxing game, beautiful scenery and there is a lot to do (like A LOT) and I found no bugs (only fish ;) ) Very good for a one-man crew (+ music man) !