Did not expect much going into the game but I'm genuinely surprised how much I actually enjoy it! It's just something about the feel of the game that just makes it so satisfying and relaxing! Well done on that!
I feel like you could take this game further by adding come attention to details and some fun interaction. Say maybe a rower to the boat that does various idle animation, like fishing, maybe some fish jumping over the boat, a little rocking on the boat, etc. Also, could add a night cycle where the water is a lot more calm and have glowing particle appearing where the water is disturb (by the boat, the shore lines, etc). Something similar to this:
Gif taken from life of pi night scene
But yeah I felt this can be a really good game to chill in, just sit back and relax. Really enjoy the game a lot! Keep it up! Oh I also found that the collider is acting a bit weird, forgive me if I'm wrong but did you use tick convex on the mesh collider? Cause if so it'll make a weird simplified collider with weird shape. And with that I'll leave you with this screenshot: