This is a fun game with some serious flaws in my opinion. Its strong points are the wave simulation that directly ties into the theme of the jam, and the audio direction is great (I get a little chuckle whenever I hear that "set sail").
I think mechanically the game is troubled. The placement of the player's ship on the left of the screen and the sails indicates that your goal should be moving right, when in reality you need to stay afloat and tilting your craft results in tipping. Like, the first couple of play-sessions are basically a drowning simulator. Upgrades like the paddle basically insta-kill you.
At least you respawn quick and try again. Once you get a couple of upgrades the game actually gets going and your input can actually help you stay alive longer. I did make it to the final upgrades of each category, but that was mostly by leaving the game on and resetting it when I died because any input tends to make you lose faster :)
Overall - technically impressive game with a great interpretation of the theme, but with a starting player experience that might push people away.