Quote Originally Posted by Merrigan View Post
... the almost infinite design possibilities offered by the sea. Where are the immense ruins, underwater palaces and wrecks where treasure can be found?
While there are "infinite possibilities" across all the games that could possibly be made, that doesn't mean this game is built to be able to utilise them. What good would a "wreck filled with treasure" be in a game that doesn't have treasure chests in its overworld?

We've had a ship graveyard, we've had ancient ruins that happen to be very Art Deco, other ancient ruins that were definitely underwater and full of gold, and a literal undersea palace in Japanese style. None of the undersea locations are physically filled with water because the game doesn't do water physics, but they're still the same locations that would probably get designed if we could swim there.