Hopefully not a spoiler, but i got to the place with faces that was WSW, but flipped the boat on the rocks and now I can only go due South - was I anywhere close to the end?
Thoughts: I liked the storm - maybe some sheet lightning wouldn't go amiss; some wind/rain noise too, though not at the expense of the music; a sun/moon would be a nice touch too; maybe make the compass smaller and dimmer; a boat reset/flip button; shark fins/flotsam/jetsam (I saw your wildlife comment); press to go faster rather than hold to go forwards