Okay so, I love to do shipwrecks from the trading company and I think that something like a diving bell (like in AC IV Black Flag) could be added, like you throw it from your ship and you have a way to recover breath quickly thant going up all the time, and to make it more fun and not just a broke dynamic, it could have some kind of nerf like your boat needs to be with the anchor dropped and also make it very expensive, and maybe sharks could damage it too. Or instead of a diving bell just an antique diving helmet, with also some bad parts for the players, like the ship has to be still with the anchor dropped, the "tube" for the helmet can break.
I think something like that could be cool.
