I really want to see this game get somewhere. It has a lot of potential. But I've got a few nitpicks:
1. Why does the boat control like a car? It often bugs be that I will try and turn around and then I realize that I can only do that if I am moving forward or back. Other than that, I think the boat actually feels really nice, because it feels like it has a lot of weight.
2. The game really needs a controls menu. The mouse sensitivity was slightly higher than I feel comfortable with, and I usually swap right click and space for comfort. Not having those settings severely dampened the experience
3. I noticed really obvious pixelation around certain objects (especially around small fractal-generated terrain). Because I don't know how the tech behind the fractals really works I can't really be the one to say that it must be fixed, but if it has a huge performance impact to not have that then perhaps you could make it a setting to get rid of it (say, for future PC's).