Okinawa: Naha: 1 day Kerama Islands diving‣ license required

The best part of this Okinawa scuba trip is the setting: you leave Naha by high-speed boat and spend the day around the Kerama Islands, where clear water, coral, fish, and the chance of turtles make each site different. I like that the crew chooses three sites according to the day’s sea conditions and your interests, rather than locking you into one fixed reef.

I also like the practical extras. Hotel pickup in Naha, tanks and weights, towels, hot water, and a boat coat are included, and solo guests can join. The main caution is consistency: some participants had excellent instructors and memorable marine life, while others reported worn equipment, weak briefings, or crowded conditions. Ask questions early and inspect your gear before leaving the harbor.

Key points to know before booking

• Three Kerama sites in one day: The boat may visit areas around Tokashiki, Zamami, and Aka Island, with final choices based on conditions and your requests.
• A C-card is required: This is for certified scuba participants, not a first-time lesson or introductory swim.
• Winter whale watching: From mid-January through March, whale watching is included on the Kerama route, but sightings are never guaranteed.
• Useful cold-weather support: A hooded vest, 5 mm suit, free boat coat, heated cabin, and hot food help in the cooler season.
• Naha pickup is limited: Pickup is included within Naha city when seats are available, but you must provide your hotel details and be ready before the 8:00 AM departure.
• Seasonal treats: Shaved ice is offered in August and September, while January 1 includes mochi pounding and all-you-can-eat food for those ordering lunch.

Leaving Naha for the Kerama Islands

This is a long half-day on the water, with about an hour of road transport each way and roughly six hours assigned to the Kerama National Park outing. The boat departs at 8:00 AM, so your morning starts early. If you use the hotel pickup, wait outside your Naha hotel at the time sent by email the day before.

Pickup is limited by available seats. If the van is full, you may need to meet at the port instead. People staying outside Naha city must meet and finish at the designated location, so write your hotel name and address clearly when booking. Drivers who come by car can use the customer parking area, though port parking costs 500 yen per day.

The boat ride is part of the appeal. You get views of other islands as you cross toward the Keramas, rather than simply arriving at a dock and climbing straight into the water. The tradeoff is that sea travel can be rough. If motion sickness affects you, take your preferred medicine before departure rather than waiting until the boat is moving.

The boat serves both scuba participants and snorkelers. One account described a large group, although the scuba group entered the water first. That arrangement can work well if you want to maximize time below the surface, but it may feel less private than a small specialist boat. If you want a quiet, highly personal trip, ask about the expected group size before paying.

Three sites chosen around Tokashiki, Zamami, and Aka

The plan is to visit three locations around the Kerama Islands, with the crew selecting from areas near Tokashiki Island, Zamami Island, and Aka Island. Chibishi Islands are not part of this route, so do not assume every nearby reef is included.

The operator says it can adjust the outing to your level and interests, including large animals, smaller fish, or underwater terrain. That flexibility matters because the Keramas are not one single underwater scene. One site may offer coral and fish, another may be more open and sandy, and a third may suit a different current or visibility pattern.

I like the idea of choosing the best available points on the day. Sea conditions change, and a fixed schedule can leave you at a poor site simply because it was printed in advance. Still, this approach means you cannot promise yourself a particular reef, animal, or underwater feature.

The quality of the day depends heavily on communication. Some participants found the staff friendly, patient, and helpful, while one English-speaking participant had trouble understanding a guide with limited English. The named instructors include Takashi and Koyama. Takashi was praised for patience and careful instruction, while Koyama was described as especially kind.

If your Japanese is limited, tell the operator your comfort level when booking. Ask for a clear briefing on the route, hand signals, current, entry method, and what to do if your equipment feels wrong. That small step can make the day much easier.

What you may see below the surface

The Keramas are known for clear water, coral, and plentiful fish, and several participants had strong encounters with sea life. One person described colorful coral, good visibility, and many fish across three sites. Another saw a turtle and a wide range of smaller animals. These are promising signs, but marine life is never guaranteed.

Conditions and site selection matter. One participant had a second visit that was mostly sand and felt the crew could have chosen a stronger location. Another reported very little to see on a poor-weather day. I would treat the three-site promise as three chances to find good conditions, not as a guarantee that every stop will be spectacular.

The trip can also include whale watching from January 12 or January 15 through March 31, depending on the stated seasonal schedule. The information gives both dates, so confirm the exact start date when you book. The route must be the Kerama route, and the operator notes that weather and sea conditions may prevent sightings.

Whales are a welcome winter bonus, not the reason to book the scuba trip. You may see them from the boat, or you may spend the day without a sighting. Keep your expectations steady and enjoy the islands and water even if the whales stay out of view.

Equipment, briefings, and the details that matter

Full rental equipment, tanks, weights, towels, tea, a changing room, a hot water shower, and a toilet are included. A rental camera is also available by reservation. A GoPro costs 3,000 yen with an SD card, while an SD card for the rental camera costs 2,000 yen. You can bring your own card if it fits the camera.

The equipment reports are mixed, and this is the most important caution in the whole package. One participant said a BCD inflator malfunctioned and that replacement was refused. The same person described badly worn booties and felt the safety briefing was too brief. Another participant reported a faulty octopus and was unhappy with the response.

I recommend a simple check before departure. Confirm that your BCD inflates and deflates, your regulator breathes normally, your octopus is accessible, your mask seals, and your booties and fins are in usable condition. If anything feels wrong, say so before the first entry. Do not accept a problem simply because the boat is on a schedule.

A separate concern was marine protection. One participant felt that new snorkelers touched coral and marine life, and that staff did not intervene firmly enough. The stated rules prohibit touching marine life, and you should follow that rule carefully. Keep your hands and fins away from coral, even when the water is calm and the reef looks close.

The trip is not suitable for uncertified participants. Bring your C-card and dive log. The operator also excludes people with several medical conditions, including heart, respiratory, kidney, and blood pressure problems, as well as people with epilepsy, diabetes, recent surgery, a cold, or other pre-existing concerns. If any health issue applies to you, ask a medical professional and the operator before booking.

Winter comfort from January through March

Okinawa’s winter air can feel mild, but a wet boat ride can still leave you cold. The operator uses a 3 mm hooded vest under a 5 mm one-piece suit, plus a boat coat that you can wear over the suit at no extra charge. The cabin and engine are heated, with an intended cabin temperature of about 25°C.

Lunch includes hot Okinawa soba and oden in the cold season. This is a useful touch after several hours around the water. The operator also mentions an additional cold-weather solution, but supplies are limited, so ask when booking if you tend to feel cold.

Bring dry clothes, swimwear, sunscreen, sunglasses, personal medicine, and a packed lunch if you do not plan to order the optional meal. Tea is provided, but one participant noted that it was served cold. Lunch costs 1,000 yen when ordered, and the January 1 mochi event is tied to those who order lunch.

January 1 is a special date. The first outing includes mochi pounding and an all-you-can-eat event, creating a distinctly Japanese New Year touch. It is not a daily feature, so do not book another date expecting the same celebration.

Summer extras and free swim rings

August and September bring shaved ice service. After a warm day in Okinawan sunshine, that is a simple but welcome treat. Free swim ring rentals are also available, but you must reserve one in advance.

These extras are not reasons to choose the tour over another operator, yet they add comfort and fun for mixed groups. The boat may carry snorkelers as well as certified scuba participants, so a swim ring can be useful for someone who wants water time without the full equipment setup. Confirm availability before the trip because free rentals are limited.

The operator also says it can arrange special events such as birthdays and commemorative scuba outings. Put the request in the booking comments rather than assuming the crew will know about it on the morning of departure.

Is the 129 dollar price good value?

At 129 dollars per person, the package includes a substantial amount: transport within Naha when available, a full day on the Kerama route, three planned site visits, tanks and weights, rental gear, towels, tea, changing facilities, a hot shower, and a boat coat. For a certified visitor who needs most equipment, that can be a fair price.

The value drops if you need a GoPro, lunch, port parking, or a rental camera card. Add 3,000 yen for a GoPro with its card, 2,000 yen for a camera SD card, 1,000 yen for lunch, and 500 yen per day for port parking when applicable. A diver bringing a camera card and lunch can keep added costs down.

The strongest value is convenience. You can leave from Naha, travel to several Kerama sites, and avoid arranging tanks and weights separately. The weaker point is that the experience may feel busy, and equipment condition deserves your attention.

Free cancellation is available up to 24 hours before departure, and you can reserve without paying immediately. Weather can still change the destination or cancel the plan on the day. The sea, not the brochure, gets the final say.

Who should book this Kerama scuba trip?

This suits a certified diver who wants a full day on the water without arranging a private boat. It is also a good match for solo visitors, since the operator accepts one-person bookings and the schedule includes hotel pickup when seats are available.

You should be comfortable with a boat shared by scuba participants and snorkelers. You should also be ready for changing site choices, a full timetable, and the possibility that English communication varies by instructor. An experienced diver may want to bring extra patience and check equipment carefully.

This is not for children under 10, pregnant people, wheelchair users, people with mobility or visual impairments, or people with the listed medical conditions. Unaccompanied minors are not accepted, and minors need parental consent. Pets are not allowed, although assistance dogs are permitted.

Practical booking advice for a smoother day

Write your hotel name and address in the booking comments. Watch for the email sent the day before, since it gives the pickup time. If there is no contact with the operator, you may need to meet locally rather than expect a van.

Arrive ready for an 8:00 AM boat departure. Pack a change of clothes, your certification card, dive log, sunscreen, sunglasses, and medicine. Leave oversize luggage at your accommodation, and remember that smoking is not allowed in the vehicle.

If you want lunch, a GoPro, a rental camera, a swim ring, or a special event, request it early. Pickup seats and some equipment are limited. Tell the crew if you want sites focused on fish, larger animals, or terrain, though final choices depend on weather and sea conditions.

Should you book it?

Book this trip if you want convenient access from Naha to the Keramas, need rental equipment, and value three possible sites in one day. The kind staff, patient instruction from guides such as Takashi, and strong reports of coral, fish, and clear water make it an attractive option.

I would not book it without asking about current equipment checks, group size, and English briefing support. The experience can be excellent, but the mixed reports about worn gear, faulty regulators, crowded boats, and uneven site selection deserve attention.

For a certified diver who accepts that the sea controls the schedule, this is a practical Kerama outing with good seasonal extras. Reserve early for pickup, check every piece of equipment, and judge the final quality by the briefing and gear inspection before you enter the water.

FAQ

Is a diving certificate required?

Yes. You must have a C-card to participate, and you should bring your diving certification and dive log.

How long does the activity last?

The full activity lasts about seven hours. The listed schedule includes about one hour of van transport each way and around six hours at Kerama National Park.

Where is pickup available?

Pickup is available within Naha city when seats remain. You must provide your hotel name and address, and the operator sends the pickup time by email the day before. If you stay outside Naha, you must meet and finish at the designated location.

What equipment is included?

Full rental equipment, tanks, weights, towels, tea, a changing room, a hot water shower, and a toilet are included. A boat coat is also provided at no charge.

Can I rent a camera?

Yes, a rental camera is available with advance reservation. A rental GoPro costs 3,000 yen with an SD card, while an SD card for the rental camera costs 2,000 yen. You can bring your own card.

Is whale watching included?

Whale watching is included on the Kerama route during the seasonal period from January through March. The supplied information gives January 12 and January 15 as different starting dates, so confirm the exact date when booking. Sightings depend on weather and sea conditions.

What happens if the weather is poor?

The destination may change suddenly, or the activity may be canceled because of weather and sea conditions. Whale sightings are also not guaranteed. If you are prone to seasickness, take anti-sickness medicine in advance.