Perfect for divers, snorkelers and nature lovers! Side One is a mini-map of Okinawa, Japan, with dive sites named and located. Side Two is a fish identification guide with nearly 100 species illustrated. This convenient, waterproof reference is made of hard, laminated plastic with hole for lanyard. 5.5" x 8.5" Franko Maps Ltd. is known for producing the best travel, dive and snorkel maps, guides and fish cards for the Pacific and other locations worldwide.