This is quite polished, with a lot of attention on the UI and tutorial. Nicely done with a bunch of systems working nicely together. Maybe one thing to improve would be to make the player character able to withstand some amount of contact with water. I tried walking into the lake and died immediately. =)
I don't really understand what the sound is supposed to tell me whenever I get close to a fishing zone. It seems like it's signaling I'm in the right place, but it sounds more like a warning sound telling me to stay away.