From publisher blurb: No time to whip up a flooded cave battle map? No problem! Here's your solution! Complete with full concept flooded battle maps (one includes a low tide version) and bare versions so that you may use them however you wish. It also includes random flooded cave passages. Goes great with Instant Dungeon Crawl: Flooded Dungeon and Instant Dungeon Crawl: Undersea Adventures! All maps come with gridded versions. Just add monsters!