From publisher blurb: No time to whip up some underwater battle maps? No problem! Here's your solution! Includes different full concept battle maps: a sunken temple, including bare room versions; two sunken ship battle maps: the upper and lower decks; a kelp forest; ocean floor with mountains; and a base ocean floor battle map so that you may design your own layouts. All come with gridded versions. But that's not all! You also got bonus tokens! This goes very well with the Instant Dungeon Crawl: Sunken City set! Just add monsters!