I think this game needs Water dungeons/ Cove

It would be cool if this game had a water dungeon. You sail the sea and come across a small island, part of the island has a large cave entrance which you can sail into on your boat. When you sail in, you sail down a small river to enter the main Chamber. The main chamber has many winding rivers and islands which you need to carefully sail around. Maybe some parts of the rivers can be blocked off by debris or nets which forces the player to get out of the boat and clear the blockage to continue sailing.

I imagine this dungeon would have Shipwrecks and enemies living in the destroyed ships as if it where a camp. It would be cool if it had some environmental hazards too such as explosive barrels which players can shoot at from the ships and hanging Stalactites which can be knocked down. I also imagine some of the islands having docks which the player can stop at and jump up to the higher islands, perhaps walk across rope bridge to get between islands.

Overall I just think dungeons you can sail through is a cool concept.