It's a feature I'd like to see implemented. For my part, I was rather disappointed by the treatment of the underwater areas, which fell far short of those in WOW. In general, they're pretty ugly, empty and boring. Even the graphics are very uninspired, which is odd given the almost infinite design possibilities offered by the sea. Where are the immense ruins, underwater palaces and wrecks where treasure can be found?

There must be technical reasons for this, in terms of combat implementation / vertical axis management for creature movement. For combat, we could simply imagine special actions that would resolve a few rp concerns (indeed, an arrow in the water shouldn't hit its target), in Bozja's style? Maybe that's a bit greedy.