Kerama Manta Point - Japan Diving
Site Overview
Kerama Manta Point is one of Japan's most reliable dive sites for observing reef manta rays (Mobula alfredi) throughout the year with peak encounters from January through April during the mating and cleaning season. The site features a coral-encrusted pinnacle rising from twenty-five metres to five metres depth with a natural cleaning station at fifteen metres where mantas visit to have parasites removed by cleaner wrasse and other small reef fish. The pinnacle is surrounded by deep blue water creating an open ocean environment where pelagic species including eagle rays dolphins and occasional whale sharks pass through. The coral reef surrounding the pinnacle supports exceptional biodiversity with hundreds of tropical fish species massive table corals and schooling jacks creating a vibrant underwater landscape. The crystal clear Kerama waters consistently provide visibility exceeding thirty metres making it one of the most spectacular diving environments in Japan. Manta ray encounters at this site follow strict observation protocols with divers maintaining passive positions on the reef to avoid disturbing the mantas during their cleaning visits. The combination of reliable manta encounters exceptional water clarity and vibrant coral reef creates an unforgettable dive experience that draws divers from around the world. The combination of reliable manta encounters exceptional water clarity and vibrant coral reef creates an unforgettable dive experience that draws divers from around the world to the Kerama Islands. The site's accessibility by boat from Zamami Village makes it convenient for multi-day diving trips with the opportunity to combine manta diving with the exceptional coral reef sites throughout the Kerama archipelago during the same visit.
Dive Briefing
"Descend on the mooring line to the cleaning station at fifteen metres and establish a passive position on the reef substrate with neutral buoyancy. Maintain a low profile and avoid sudden movements while observing the cleaning station for approaching manta rays. Manta rays typically circle the pinnacle at fifteen to twenty-five metres depth approaching the cleaning station from the blue water. After the manta encounter explore the surrounding pinnacle reef observing the diverse coral community and schooling fish before ascending along the mooring line for a safety stop at five metres. After the manta encounter explore the surrounding pinnacle reef observing the diverse coral community and schooling fish before ascending along the mooring line for a safety stop at five metres. The shallower sections at five to ten metres feature healthy staghorn thickets and table corals with abundant tropical fish providing an excellent shallow conclusion to the manta observation dive."
Signature Marine Life
Reef manta ray
Mobula alfredi
Best: January, February, March
Green sea turtle
Chelonia mydas
Best: March, April, May
Whitetip reef shark
Triaenodon obesus
Best: April, May, June
Humphead wrasse
Cheilinus undulatus
Best: March, April, May
Hawksbill sea turtle
Eretmochelys imbricata
Best: May, June, July
Safety & Hazards
- Strong Kuroshio Current influence creating unpredictable drift conditions on outer reef dives
- Boat traffic from dive boats fishing vessels and glass-bottom tour boats in popular coastal areas
- Seasonal typhoon activity from July through October requiring constant weather monitoring and trip flexibility
- Venomous stonefish and sea snakes present on reefs requiring careful buoyancy and no-touch policies
- Coral contact risk on shallow reef dives requiring excellent buoyancy control to protect fragile formations
Traveler Notes
Who is this for?
Kerama Manta Point is ideal for intermediate and advanced divers seeking reliable manta ray encounters in clear warm waters. The site requires drift diving competence and adherence to manta observation protocols. Underwater photographers will find exceptional wide-angle opportunities with manta rays against blue water backgrounds. Nature enthusiasts will appreciate the unique cleaning station interaction between mantas and cleaner fish. The site is accessible to open water certified divers but advanced certification provides better preparation for the open water conditions. The site is accessible to open water certified divers but advanced certification provides better preparation for the open water conditions and moderate currents at the cleaning station. Underwater photographers will find exceptional wide-angle opportunities with manta rays against blue water backgrounds creating iconic images of Japan's premier manta diving destination.
Quick Stats
Dive Logistics
- Bluefield Yomitan
- Diving Service Uminchu
- Kerama Divers
- Pirania Divers Okinawa
- Sea Serpent Dive Center
Photography Info
Best for: wide_angle
Nearby Stay
Hotel Gracery Naha
Naha, Okinawa • 5km away
Ryukyu Hotel & Resort Nashiro Beach
Itoman, Okinawa • 10km away