Nice work! The art looks nice, and I enjoyed the sea exploration. An adventure audio would have been awesome with it, and I can see this being even more polished beyond the jam.

The game is beautiful. No idea what I'm doing out there on the high seas though. Arrrrrrr

Really cool graphics and gameplay.  I like the store mechanic, I would have liked to include something in my game. Impressive to pull this off within the span of the jam. I also like that one of the screenshots included was your planning/notes, fun behind the scenes.

Super cool game concept! 

The font was a little hard to read sometimes, but it's a really cool idea to sail around an open sea looking for treasure and upgrading your ship.