About Cerulean Blue Okinawa
Cerulean Blue is one of Okinawa's largest marine activity operators, running a broad catalogue of ocean tours from their base in Naha. Founded as a local optional-tour company, they have grown into a one-stop booking platform for everything from whale watching and whale-shark snorkelling to Blue Cave dives, Kerama Island day trips, and sunset cruises.
Their seasonal whale-watching programme runs from late December through April, departing from Naha's Miegusuku Port aboard purpose-built cruisers with onboard scouts coordinating with shore-based lookouts to maximise sighting rates — which have exceeded 97 percent in recent seasons. Outside whale season, the fleet pivots to snorkelling excursions in the Kerama National Park, introductory scuba dives, parasailing, jet-ski rides, and glass-bottom boat cruises. Combo packages let visitors stack multiple activities into a single day.
Cerulean Blue's strength is sheer variety under one brand. Instead of hunting down separate operators for each activity, visitors can book an entire Okinawa water itinerary through a single English-friendly website. Hotel pickup from Naha is included on most tours, and their customer-service desk handles last-minute changes smoothly — a big plus for travellers on tight holiday schedules.
