Cave of the Great Pearl

From publisher blurb: Deep in a sea cave, unreachable to most, lies a great treasure A printable battlemap compatible with any RPG/Dungeon-Crawl game. Use as a standalone gameboard, or combine with any same-scale tileset. Contents: A 30 x 30 map depicting a fortified sea cavern and dungeon, with a large pearl. Palisade fences, barricades and watchtowers protect the approach to the egg.