REACHED WATER, is there an end to the water?
Congrats on reaching water!
No, there isn't an end to the water, as it marks the end of the first half of the game. Once you reach it, you'll unlock the Headgear slot, the Signpost (which lets you access the second part of the game), and the upgraded Flask.
Reaching water with each turtle also unlocks that turtle's unique cosmetic headgear.