UmiMotto is a dive shop located in Ishigaki City on Ishigaki Island, Okinawa, a five-minute drive from the harbor. It runs its own boat, nicknamed "GORILLA" (top speed about 30 knots, with a toilet, hot-water shower, and sun/wind shade tents), which it operates jointly with another shop sharing the same premises, "Diving Service SUNNY SUNNY". UmiMotto offers fun diving for certified divers, discover/trial diving for beginners, mangrove dives, and a full technical rebreather program (trial dives through OW/AOW rebreather certification). Instructors hold a range of PADI specialty ratings, including rebreather, technical/deep, self-reliant diver, and sidemount instructor credentials.