3. What Lies Beneath?
We already know that we will have access to underwater exploration in some capacity, but the question remains - what's under there? Shipwrecks? Caves and Caverns? Buried Treasure? Or something more sinister, like the body of a gangster with concrete shoes? There's going to be something down there worth looking for, or Rockstar wouldn't have put so much effort into the underwater element of the game in the first place. They are renown for hiding "Easter Eggs" throughout the map, what better place to hide something like that than in some dark unexplored underwater cavern? Perhaps there is even some buried long-forgotten treasure down there as well, after all, GTA V is all about "the mighty dollar".