Hey pl idea that I had...I understand that it would be hard but an underwater campaign would be cool...and you could make it that you need a vanity(rebreather) to go to that dungeon... you could link it's town to alien oasis by a tunnel under the lake...you could also place it in the water in the upper left hand corner of the map....wepons could be like anchors, harpoon guns, and starfish wand and the like.