>>53802831The Hoenn underwater routes always seemed a little unnerving to me, especially since a lot of them are out deep in the ocean. They're dark, they're isolated, and while they're not really a maze they can be a little confusing if you aren't paying attention.
Just you, in the middle of nowhere, at the bottom of the seafloor, in the dark. No one would ever find you. Kinda weirded me out as a kid, even though I still thought it was a cool feature.