I love rivers, ponds and lakes with typical flora & fauna. It was a feature that was almost ready in Java, or was just a promise in an old forum. I also wish for rivers that are deep, rocky, full of life, and to get that view in the game without the mode GM1, I think that Squirt Boating can view the water the best.
Hidden temples/ ruins under the water will need to be found, the graphics now make water look amazing with the flora, and exploring it is a must when fauna is in all waters! Scuba diving is expensive, in real life and maybe in game, so Squirt boating is boating under the water. Lol. I just learned about it. See link below on what it is.
Squirt Boating: The Wettest Form of Kayaking (Video) - Paddling Magazine