I created a teams for now: https://stackoverflow.com/c/ocean-exploration/questions
But I want to promote the creation of a site like "space exploration" for more discussion on the current events in ocean exploration. There's a lot happening down there and almost none of it fits neatly into any of the existing sites whether engineering, earth sciences, etc.
Just like space exploration talks all about what it takes to get into space and do science or exploit it. Ocean exploration could discuss the same topics, how to get down there, are humans necessary or do it all by robot, is anything worth mining, should it be mined, etc?
If interested, there's an Area51 site trying to propose this as well.