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

Kerama’s underwater world is the main event. This seven-hour trip from Naha takes certified divers by fast boat toward Tokashiki, Zamami, and Aka islands, with three selected sites planned for the day. I like the included equipment and hotel pickup, and I also like that solo guests can join without arranging a private group.

The winter setup is thoughtful, with boat coats, heated spaces, and hot Okinawa soba or oden available for extra warmth. The main concern is consistency: some guests praise the patient staff and excellent coral, while others report worn gear, weak briefings, and poor English communication. I would confirm equipment and language needs before booking.

Key points to know before booking

• Three Kerama-area sites: The crew aims to choose three locations based on your level and the day’s sea conditions.
• C-card required: This is for certified scuba participants, not beginners taking their first lesson.
• Fast boat and Naha pickup: Hotel pickup within Naha is included when seats remain, with the boat leaving at 8:00 AM.
• Seasonal extras: Whale watching is offered during the winter season, shaved ice comes in August and September, and January 1 includes mochi pounding.
• Solo-friendly operation: The boat runs every day even when only one person books, subject to availability and weather.
• Bring lunch money or a packed meal: Lunch is not part of the base price, though Okinawa soba and oden are available for purchase.

What the $129 price really covers

At $129 per person, this is a reasonably priced full-day boat outing for certified scuba divers, especially because the base fare includes tanks, weights, the rest of the rental equipment, a towel, tea, changing facilities, a hot-water shower, and a toilet on board or at the operating facilities.

The value improves if you are traveling light. You do not need to bring a full set of equipment, and the towel saves one more wet item from taking over your luggage. Boat coats are also included, which matters in winter when the wind can feel colder than the air temperature.

The price does not cover lunch, a GoPro, or an SD card for the rental camera. A recent price given for lunch was 1,000 yen, while a GoPro with an SD card cost about 3,000 yen. A rental camera may be available by reservation, but its SD card costs 2,000 yen unless you bring your own.

I would compare this cost with a simple checklist. If you need equipment, transport, and three boat-accessed sites, the package is attractive. If you already have your own gear and only want a short local outing, the extras and seven-hour schedule may make it less of a bargain.

The early Naha pickup and 8:00 AM departure

The day starts with pickup in Naha, followed by roughly one hour in a van. Pickup is not automatic for every booking. You need to provide your hotel name, and the operator will send the exact time by email the day before.

There is a limit to the number of pickup seats. Book early if hotel transport matters to you. If the seats are full, or if you stay outside Naha, you may need to meet the group at the port and return there after the trip.

The boat leaves at 8:00 AM, so this is not a forgiving morning. I would have your swimsuit on or ready, keep your certification card and logbook in a small waterproof pouch, and check your email the evening before. Guests driving to the port can use a customer parking lot, though port parking costs 500 yen per day.

The van ride is practical rather than scenic. Its main purpose is getting you from your hotel to the harbor without the trouble of finding the departure point. If you are prone to motion sickness, take your usual medicine in advance. The fast boat and open-water ride can be hard on an unsettled stomach.

Three sites around Tokashiki, Zamami, and Aka

The outing is centered on Kerama National Park, with the main area around Tokashiki Island, Zamami Island, and Aka Island. The operator uses two boats and aims to select three good sites each day, adjusting the plan for sea conditions, ability, and what you want to see.

That flexibility is useful. You can tell the staff if you prefer larger animals, small sea life, coral, or underwater rock formations. The crew also says it can work with people who have not been in the water for some time, as well as older certified divers.

The quality of the sites will not be identical every day. One account describes fish, colorful coral, and good visibility, while noting that a second site was mostly sand. Another account found three beautiful sites with coral and varied sea life. That is the nature of a sea-based trip: the crew can make sensible choices, but it cannot control visibility, current, weather, or the animals.

The route does not include the Chibishi Islands. If a particular reef or island area is your priority, ask before reserving. The supplied information describes this as a half-day style boat route that takes about 15 minutes in one section, but the full schedule is seven hours with transport and several site visits, so clarify the exact plan if timing matters.

What the three underwater sessions are like

The plan is built around three sessions in the water, with surface time on the boat between them. You need a valid C-card, and you should bring your dive log. This is not a learn-to-scuba program for uncertified participants.

The crew says it will adapt guidance to your level, which is helpful if you are certified but have been out of practice. Still, I would not treat that promise as a substitute for a proper safety briefing. One serious complaint described a short briefing, faulty equipment, and a failed inflator on a BCD that was not replaced. Another account reported a faulty alternate air source and concern about poor protection of coral.

Those reports are not reasons to assume every trip will have problems, but they are reasons to inspect your equipment before entering the water. Check the BCD inflator, alternate air source, mask, fins, boots, and regulator. If anything feels wrong, ask for a replacement before the boat leaves the first site. A torn boot or unreliable inflator is not a minor comfort issue.

There is also an environmental responsibility here. Do not touch coral or marine life, and keep your fins clear of the reef. The operator’s rules prohibit touching sea life, but one account raised concerns about inexperienced people making contact with coral. If reef care matters strongly to you, tell the guide before the first session and watch how the briefing handles it.

Staff, language, and group comfort

Japanese and English are offered, and some guests describe the staff as friendly, professional, and patient. Takashi received praise for being calm and helpful, while Koyama was singled out as especially kind. Another solo participant found the coaches welcoming and never felt left out.

English ability may vary by instructor. One experienced guide reportedly spoke limited English, which caused some difficulty above water even though hand signals worked during the session. If you need detailed English explanations about equipment, currents, site conditions, or safety, state that clearly when booking and again at the port.

The boat can include both scuba participants and snorkelers. That mixed setup did not bother everyone, and one guest noted that scuba groups entered the water first. Still, a large group can mean more noise, more waiting, and less personal attention. One low rating described the boat as overcrowded.

The operator owns two boats, which helps with scheduling and site selection, but that does not guarantee a small group. Ask about the expected group size if space and quiet matter to you. Solo bookings are accepted, but joining alone does not mean you will have a private guide.

Winter comfort from January through March

Okinawa’s winter air averages around 20°C, while Kerama seawater is said to remain above 22°C. The water may therefore feel more comfortable than the wind on the boat, particularly after you climb out.

The cold-weather setup includes a 5 mm one-piece suit, a 3 mm hooded vest underneath, a free boat coat, a cabin heater, and an engine heater. The cabin is maintained around 25°C according to the operator. Lunch options include hot Okinawa soba and oden, which sound especially welcome after three sessions in the water.

Boat coats are limited, so request one when you book rather than assuming one will always be available. Bring a dry change of clothes even if you expect mild weather. Sunglasses, sunscreen, swimwear, personal medication, and a towel are also useful, though a towel is included.

From the advertised winter period, whale watching is included on the Kerama route. The stated dates vary slightly: one part of the information says January 12 through March 31, while another says January 15 through March 31. Confirm the current start date when reserving.

The chance of seeing whales is described as high, but no sighting is guaranteed. Weather and sea conditions can cancel the whale portion or change the destination. Think of it as a welcome extra, not the reason to book the whole day.

Summer shaved ice and New Year mochi

August and September bring a simple seasonal treat: shaved ice after the day’s activity. That may sound small, but it is a pleasant finish after time in a warm wetsuit and tropical sun. Free swim-ring rental is also available with advance reservation, although the information does not say how many rings are available.

January 1 has a different flavor. The first session and traditional mochi pounding take place that day, with an all-you-can-eat mochi event. This event is connected to ordering lunch, so confirm the meal arrangement before you count on it.

Special events can also be arranged for birthdays and commemorative sessions. Put the request in the booking comments. The operator says it will try to meet requests, but special treatment is not guaranteed.

Lunch, cameras, and what to pack

Lunch is not included in the $129 price. You can bring a packed lunch, and the information also lists hot Okinawa soba and oden as available options. A recent account put lunch at 1,000 yen and noted that people with their own food had a cool place to store it.

Drinking water is not described as a full service. Tea is included, and one account specifically noted cold tea. I would bring a refillable bottle if permitted and ask about storage when you board.

For photographs, reserve the rental camera in advance. A camera may be included as an available service, but its SD card costs extra. A GoPro rental costs 3,000 yen with an SD card. If you bring your own camera, use a secure wrist strap and avoid handling it near coral.

Pack only what you need. Oversize luggage is not allowed, and the rules prohibit alcohol, drugs, smoking in the vehicle, fishing, pets, weapons, fireworks, and loud behavior. Assistance dogs are allowed, but the general accessibility limits are strict.

Who should book this Kerama boat trip?

I would recommend it most strongly to a certified diver staying in Naha who wants three sessions without arranging taxis, equipment hire, or a separate port transfer. It also suits solo guests, people returning to the sport after time away, and anyone who wants seasonal extras such as winter whale watching or summer shaved ice.

It is less suitable if you are uncertified, pregnant, under 10, over 95, or managing heart, respiratory, kidney, blood-pressure, neurological, or other medical concerns. The supplied restrictions also exclude people with vertigo, epilepsy, diabetes, recent surgery, a cold, mobility limitations, or vision impairment. Parental consent is required for minors who are otherwise eligible.

I would be cautious if you need a guaranteed small group, perfect English support, recently serviced equipment, or strict control of snorkeler behavior. The overall rating is 3.9 from 20 ratings, which fits the mixed picture: some excellent days, but not a fully consistent operation.

My booking verdict for certified divers

Book this trip if convenience and price matter, and if you are comfortable checking your own equipment and accepting a weather-dependent route. The strongest points are the three-site plan, included gear, Naha pickup, solo-friendly booking, patient instructors on good days, and the Kerama scenery.

Before paying, send three questions: How many people are expected on the boat? Which instructor will handle English communication? Can I have replacement equipment if a BCD, regulator, or boot is not working properly?

If the answers are clear, this can be a fine-value day in Kerama National Park. If your main goal is a quiet, highly personal outing with guaranteed site quality, search for a smaller specialist operation instead.

FAQ

Is a diving license required?

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

How long does the experience last?

The total duration is seven hours, including transport from Naha and the return journey. The Kerama National Park portion is listed as about six hours.

What time does the boat leave?

The boat departs at 8:00 AM. The pickup time is sent by email the day before, so check your message carefully.

Is hotel pickup included?

Pickup is available within Naha city, subject to available seats. You must provide your hotel name when booking. If you stay outside Naha, you may need to meet and finish at the port.

Are tanks and scuba equipment included?

Yes. Full rental equipment, tanks, and weights are included. Inspect the equipment before entering the water and report any fault immediately.

Is lunch included in the price?

No. You can bring a packed lunch or order lunch separately. Hot Okinawa soba and oden are available, and a recent listed lunch price was 1,000 yen.

Is whale watching included?

Whale watching is offered on the Kerama route during the winter season, advertised as January 12 or January 15 through March 31 depending on the booking information. Sightings depend on weather and sea conditions.

Can I rent a GoPro?

Yes. GoPro rental costs 3,000 yen with an SD card. A rental camera may also be available by reservation, with an SD card costing 2,000 yen.

Are towels and showers available?

Yes. Towels, a changing room, a hot-water shower, a toilet, and tea are included.

Can children or people with medical conditions participate?

Children under 10 are not suitable for this experience, and minors need parental consent. The restrictions also exclude pregnant people and those with several listed medical, mobility, and sensory conditions. Check the full health requirements before booking.