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

Kerama feels like a short hop to another world. This 7-hour Kerama Islands SCUBA day runs from Naha with fast-boat island cruising and a guide-led plan for your skill level. I especially love the way they select the best three water points of the day, and how they handle colder months with serious boat warmth and extra layers. The main thing to consider is that you must have a C-card, and winter weather can still shift what you see, including whale spotting.

If you’re planning Okinawa around real marine time, this is a practical option: transport, gear, and a guided schedule are handled for you. I also like the seasonal extras, like mochi pounding on January 1 and shaved ice in August and September, because it makes a long day feel fun, not just efficient. Just be ready for a small-group reality: a few reports point to equipment wear or tight timing on busier days, so you should set the expectation early and ask about safety briefing and gear checks.

Key Points I’d Plan Around

• C-card required: This is for certified divers, and they adjust to your experience level once you’re certified.
• Three best water points: The crew plans your day around the best spots instead of a one-size-fits-all route.
• Warm winter setup: Even when air is cool, the sea stays warm and you get boat coats plus extra insulation.
• Seasonal whale watching: Included only for a limited window (Jan 12 to Mar 31), and whales still depend on sea conditions.
• Seasonal treats and extras: Mochi pounding on Jan 1, shaved ice in Aug and Sep, and free swim ring rentals with reservation.

Kerama Islands SCUBA Day From Naha: Fast Boats, Real Marine Time

This is one of those Okinawa trips that feels simple on paper and special once you’re out on the water. You start in Naha, then ride a van to the port and jump onto a high-speed boat for a day focused on the Kerama National Park area, mainly around Tokashiki, Zamami, and Aka.

What makes it interesting is the balance: you get structure, but not rigid pressure. The operator says they own two boats, so you’re not just along for the ride. You’re guided and led to what they consider the best three points of the day, with an instructor team that can respond to your questions about fish, coral, and terrain.

The part you’ll care about most: your underwater time

They’re explicit that they guide you according to your level and that they’ll answer questions about what you might see. For you, that matters because Kerama can be different depending on the conditions, and a good lead helps you turn a “we went in water” day into a “we understood what we were seeing” day.

Pickup, Timing, and How the Day Flows (7 Hours Total)

The day is built around a morning departure. The boat departs at 8:00 AM, and the schedule is tight enough that you should be outside your hotel when they email you the day before. Pickup is only within Naha city, and there’s a seat limit, so if it’s full, you meet at the port instead.

Plan on about an hour by van to the port, then a full block in the Kerama area, and another hour back. In the Kerama National Park section, the schedule lists about 6 hours with a guided tour and your SCUBA time.

If you’re coming solo, this is set up for that

They state you can participate even if you’re alone, and they depart every day even for one person. A solo day can be stressful if the logistics are messy, but here the structure is designed to avoid that.

Kerama National Park: Three Best Water Points and Level-Based Guidance

Kerama National Park is the headline. The operator says they’ll carefully select and guide you to three best points during the day, and they’ll respond to questions about big fish, small fish, and the underwater terrain you’re asking about.

That selection piece is what I’d call the real value. If you’ve been to reefs where you drop in and hope for the best, you’ll appreciate a crew that tries to position you where conditions look most promising.

What to know about the route

They also note that Chibishi Islands are not included. There is mention of a Chibishi half-day tour that takes about 15 minutes, but for this experience, your focus stays on the Kerama route.

This matters because you should align your expectations. Chibishi is a different style of day, and your planning will be off if you expected that area.

Winter Comfort in Okinawa: Sea Temperature and Boat Warmth

One of the smart touches here is how they handle cold-season comfort. They note Okinawa winter average air temps around 20°C, but the sea water in the Kerama Islands never drops below 22°C. That means it’s often comfortable to spend time in the water, even though it feels cooler above the surface.

They also list a detailed layering plan: a 3mm hooded vest under a 5mm one-piece. On top of that, you get a free boat coat you wear over your wetsuit, plus cabin and engine heaters to keep the inside of the boat around 25°C.

Practical tip: winter makes you think it will be worse than it is

If you’re used to colder places, don’t overpack for the air and underpack for the wait. The cold comfort plan is mainly for boat time, and that’s where most people get chilled. Bring sunscreen anyway, because cool days can still give you sun burn if you’re out for hours.

Whale Watching Window: Included, Seasonal, and Not Guaranteed

Whale watching is included during a limited period: Jan 12 to Mar 31. It’s also stated to be only on the Kerama route, so if you book outside those dates, you should not expect the whale element.

They’re honest about the nature of it: depending on weather and sea conditions, you may not be able to see whales. If seeing whales is your “must,” plan your mindset for this to be a possibility, not a promise.

The value of including it

What you gain is convenience. Instead of adding a separate whale tour, you’re already on the water and the operator includes whale watching during that season. That can make your Okinawa itinerary cleaner.

Mochi Pounding on Jan 1, Shaved Ice in Aug-Sep, and Other Seasonal Extras

The experience has a cultural and playful side. On January 1st, they hold a traditional all-you-can-eat mochi pounding event. If you like local traditions, this is one of those “only happens here, only happens once” moments.

They also list shaved ice service in August and September. In practice, shaved ice is the kind of break that makes the long day feel less like a chore, especially after you’ve already been in gear and saltwater.

Free swim ring rentals, with reservation needed

There’s also mention of free swim ring rentals, but with a reservation requirement. This is useful if you plan to relax at the surface between SCUBA sessions, or if you want an extra safety comfort for non-SCUBA swimmers in your party. Just don’t assume it’s automatic. Reserve ahead.

Gear, Cameras, and What Costs Extra

This is a gear-forward day. Included items list full rental equipment, including tanks and weights, plus a towel, tea, changing room access, hot water shower, and toilet facilities. You also get a boat coat and a rental camera, though the camera details matter.

They say a rental camera is included, but reservation is required. The SD card is not included, and the SD card costs 2000 yen if you need it. GoPro rental costs 3000 yen with an SD card.

What you should decide before you go

If you love photos, decide what you actually want to pay for. The rental camera sounds convenient, but if you already own a setup or plan to use your phone in-water housing, you might skip the add-ons. If you don’t own anything, at least budget for the SD card cost.

Also, note they provide towels, tea, and hot showers, which is great value on a day where you’ll be wet and salty for hours.

Language, Instructors, and the Real Safety Check

The instructor team includes Japanese and English support. That said, the language experience can vary by instructor, especially while you’re on the boat before you’re underwater. I’d treat your briefing like something you should understand, not something you should guess.

From the operator’s side, they say veteran instructors will handle problems and they’ll guide you so beginners and those away from SCUBA for a while can enjoy it with peace of mind. That’s reassuring, because Kerama conditions can be different day to day.

Your best move: communicate your comfort level

If you have any concerns, tell them during booking using the comments section. The operator says they respond to requests as much as possible, including big picture preferences. If you want simpler pacing, more time for questions, or a slower start, ask for it.

And a basic reality: if you’re prone to seasickness, bring anti-sickness medicine in advance, because seasickness is an issue on open water days.

Who This Trip Fits Best (And Who Should Skip It)

This is not for everyone. It’s for people with a C-card. They also list who it’s not suitable for: children under 10, pregnant women, people with mobility impairments, wheelchair users, anyone with vertigo, respiratory issues, epilepsy, heart problems, diabetes, recent surgeries, kidney problems, high blood pressure, people with a cold, visually impaired people, people with pre-existing medical conditions, babies under 1, and people over 95.

Even if you’re a fit person, you should still consider your tolerance for boat time. Open water can be uncomfortable even when the water is warm.

Best match: certified divers who want a guided Kerama day

You’ll likely love this if:

• you’re certified and want a guided day focused on multiple water points
• you like the idea of a crew that plans around what’s working best that day
• you want culture and seasonal treats mixed into a marine trip

If you’re uncertified, you should look for a separate introductory or training program. This one explicitly requires certification.

What to Bring: Don’t Forget the Boring Stuff

The checklist is straightforward, but don’t underpack. Bring sunglasses, swimwear, a change of clothes, sunscreen, packed lunch, personal medication, your diving certification (C-card), and a dive log.

They also say you’ll have access to changing rooms, a hot water shower, towels, tea, and toilet facilities. That covers the “I’m wet and salty, help” part of the day.

Packed lunch is your responsibility

Since packed lunch is listed, plan what you’ll eat between boat time and water time. If you’re prone to stomach issues, avoid heavy food and stick to something that travels well.

The Value Equation: Is $129 Worth It?

At $129 per person for a 7-hour day, you’re paying for more than just “time on a boat.” You get round-trip transport from Naha (within Naha city), equipment rentals including tanks and weights, towel and shower access, guidance to three planned water points, and seasonal options like whale watching during the winter window.

The price gets better if you would otherwise pay for equipment and a guided boat day separately. It also gets better if you’ll use the warm winter setup and free boat coat, because that reduces the friction of dressing for Okinawa’s cooler months.

Where the value can wobble is in add-ons. The GoPro costs extra, camera SD costs extra, and whale watching depends on dates and conditions. Still, those are predictable costs.

My advice: treat this as a “full package marine day” rather than a cheap way to get wet.

Should You Book This Kerama Islands SCUBA Tour From Naha?

Book it if you want a well-structured day on the water with three planned Kerama water points, warm winter support, and a clear seasonal calendar (mochi on Jan 1, whale watching in mid-winter, shaved ice in Aug-Sep). If you’re a certified diver who values guidance and level-based support, you’ll likely feel taken care of.

Skip it or choose another option if:

• you do not have a C-card
• you’re sensitive to open water, since it’s a boat day with seasickness risk
• you need a strictly guaranteed whale sighting, because it’s condition-dependent
• your mobility or medical limits fall into the listed not-suitable categories

If you do book, send them your comfort level and any request in the comments. Also ask about the equipment check you want before you start, because that’s the kind of small question that can prevent a bad day.

FAQ

Do I need a diving license to join?

Yes. The experience is only for people with a C-card.

How long is the trip from Naha?

The full experience is listed as about 7 hours, with around 6 hours at Kerama National Park.

What time does the boat depart?

The boat departs at 8:00 AM.

Is hotel pickup available everywhere in Okinawa?

Pickup is only available within Naha city. If pickup seats are full, you may meet at the port instead. If you live outside Naha city, you meet and disband at the location.

What is included for gear?

Included items list full rental equipment, including tanks and weights.

Is whale watching included?

Yes, whale watching is included for a limited time only, from Jan 12 to Mar 31, and only on the Kerama route.

Can I expect to see whales every time?

No. The operator notes whales depend on weather and sea conditions, so viewing is not guaranteed.

Are cameras included?

A rental camera is included, but reservation is required. The SD card is not included and costs 2000 yen.

Is there a GoPro rental option?

Yes. GoPro rental is listed at 3000 yen with an SD card.

What should I bring for the day?

Bring swimwear, change of clothes, sunscreen, sunglasses, packed lunch, personal medication, your diving certification, and a dive log.