Kerama Island Diving Experience

The Kerama Islands are about 20 miles southwest of Okinawa, and the appeal here is simple: clear Pacific water, coral, schools of fish, and a chance to see a sea turtle from close range. This full-day trip gets you to several sites by boat, with an introductory scuba session for newcomers and plenty of time to snorkel.

I like two things in particular: beginners can try scuba with a guide, and the boat visits multiple sites, so you are not tied to one patch of water all day. Lunch, equipment, towels, and hotel pickup in Naha are included, which makes the outing easier to plan.

The trade-off is the long boat ride, which can feel rough if you get seasick. Also, the introductory package includes one scuba session, not three: the other water stops are for snorkeling unless you pay for additional sessions.

Kerama’s clear water is the main event

Keramashoto National Park protects a group of 22 islands, where coral reefs and marine life give the day its appeal. The water’s clarity is often a highlight, and you may see fish, coral, clownfish, sea cucumbers, or a sea turtle. Wildlife sightings are never guaranteed, but even snorkeling can offer a good view when conditions are clear and the water is shallow.

The trip is run by SEASIR from Naha. The operator uses boats called Love and Lucky, described as among the fastest in Okinawa, and the boat is equipped with facilities that make a full day at sea more comfortable. Past trips have included hot showers, restrooms, changing areas, towel use, and a simple freshwater rinse.

The tour is a good fit if you want to try scuba without a certification. It also suits snorkelers who would rather visit several sites than spend the day at just one. If you already hold a scuba license and want long, independent underwater sessions, check the package details carefully: the introductory option is designed around one guided session and shared time in the water.

What the full day looks like

Plan on an early start and a return to Naha around 5pm, though the schedule can shift with weather and sea conditions. The stated activity duration is about eight hours, while the detailed park itinerary runs about eight and a half hours. Treat it as a full-day commitment rather than a quick morning excursion.

You can meet at Marine House SEASIR Naha or arrange pickup from a hotel within Naha City. The meeting point is at 2-3-13 Minato-machi. Pickup and departure details are confirmed after booking, so check your email the day before and arrive early. The instructions specify arriving 15 minutes before the activity at the meeting point, and five minutes before a departure time in one section. To avoid a last-minute scramble, follow the earlier 15-minute instruction.

The outbound ride takes roughly an hour, according to trip accounts, though conditions and timing can vary. That is enough time for the sea to feel lively under the boat. If you are prone to motion sickness, take the warning seriously and bring suitable medicine. Several people have felt unwell on rougher days, and a queasy crossing can take the shine off even a beautiful destination.

Once the boat reaches Keramashoto National Park, the crew organizes the first water activities. The order of scuba and snorkeling can depend on the day and the guides. For the introductory session, a certified instructor explains the basics and supervises you in the water. One account describes two beginners assigned to one guide, with the instructor closely checking their needs. Tell your guide if you feel nervous, need a slower pace, or have trouble equalizing your ears.

The other water time is for snorkeling. You can see plenty from the surface in clear, shallow water, so you do not need to scuba to appreciate the reefs. Keep an eye on the crew’s instructions and stay within the permitted area. Some snorkel groups may be larger than the scuba groups, and the experience can feel more free-form if you are a confident swimmer.

Lunch is served on board between the water stops. Expect an Okinawan-style lunch box, with the menu changing according to season and ingredient availability. It is practical rather than a restaurant meal, and eating with the islands as your backdrop is part of the pleasure. Request a vegetarian lunch in advance; the boxes cannot be changed on the day.

After lunch, you may have the option of a third paid scuba session or another snorkel, depending on your package and the day’s arrangements. The introductory package includes just one scuba session, so confirm what is included before you book. Additional sessions cost extra, with one past participant reporting a price of 6,500 yen per extra session. You can also stay aboard and relax instead of getting back in the water.

The return journey brings you back to Naha, generally around 5pm. If the sea is rough, that ride can be the least enjoyable part of the day. If the water is calm, it gives you time to dry off, look through any photos you have, and let the day settle in.

One guided scuba session, several chances to snorkel

The introductory option is aimed at people without a scuba license. Your guide provides the equipment and basic instruction, then accompanies you underwater. You do not have to arrive knowing how to use scuba gear, but you should be ready to listen carefully and tell the instructor if something feels wrong.

Pressure equalization can be a sticking point for some beginners. If your ears hurt, do not push through it. Signal your guide and follow their direction; some people need time and coaching before they are comfortable descending. The introductory session is not a contest, and going slowly is the sensible way to enjoy it.

Snorkeling is a strong part of the day in its own right. Clear water can make the reef and fish visible from the surface, and snorkelers have seen turtles even when they did not take part in the scuba session. Still, there is no promise of a turtle encounter. Marine life moves around, and the weather and visibility can change what you see.

If you are not a confident swimmer, speak with the staff before getting in. One account describes staff helping an anxious participant, but another person found open water unsettling even though they could swim. Do not hide your nerves or assume you must keep up with the group. Ask what support is available and decide if the water feels right for you that day.

The crew, equipment, and boat comforts

Staff support is one of the most frequently praised parts of the outing. Past guides named Tan Tan, Izumi, and Kumo have been singled out for patience and care, but guide assignments change. English- and Japanese-speaking staff are included; Chinese-speaking help may be requested at checkout but is not guaranteed. Some participants have found that a guide’s English was limited, so use the safety briefing and ask for clarification before entering the water.

The boat matters on a trip this long. Facilities reported on board include restrooms, changing areas, showers, and places to store belongings. There is also a freshwater rinse. Because rinse water goes back into the sea, cleaning products cannot be used there. Bring a change of clothes and swimwear, and pack beach slippers for moving around after your time in the water.

All necessary equipment, towels, lunch, insurance provided by the operator, and round-trip transfers from the meeting point are included. Hotel pickup and drop-off are available for hotels within Naha City. You may want to bring your own camera, but an underwater camera and 2GB SD card can be rented on site; reserve ahead if you want one.

A few practical details can save frustration. A special prescription mask for people with eyesight between -2 and -8 is available at no charge if you note the request on the registration form. You can also use your own disposable contact lenses. Bring any personal medication you need, especially motion sickness medicine.

Is the price fair for a full day at sea?

Prices start at $88.45, though the amount you pay can vary by date and package. For a guided beginner scuba session, several snorkeling opportunities, boat transport, equipment, lunch, towels, and possible Naha hotel transfers, that is a solid bundle. You are paying for a full day and several chances to get in the water, not just a short lesson.

The key is to compare like with like. The introductory package includes one scuba session; the other water stops are snorkeling. If you want more time underwater on scuba, extra sessions cost more. If you are mainly interested in snorkeling, the multi-site format may make the price feel especially worthwhile. If you are an experienced, licensed diver seeking long or independent scuba time, this package may not be the best match.

The lunch is a bento, not a hot restaurant meal, and the boat ride takes time. Those are reasonable compromises for reaching the islands from Naha in a single day. The included transport and gear also mean fewer separate arrangements to make, which adds practical value for visitors staying in the city.

Who should book this Kerama Islands trip?

This outing makes sense for first-time scuba participants, snorkelers, and anyone eager to see Kerama’s reefs without arranging a separate island stay. It is also a useful choice if you are traveling with someone who wants to snorkel while you try a guided scuba session. The boat has room for you to rest between water stops, and you can opt out of the post-lunch session.

It is less suitable if you strongly dislike boats, are prone to motion sickness, or want an intensive scuba itinerary. The operator sets an age range of 10 to 60 for participants, and the activity is not recommended for certain medical conditions, including high blood pressure and epilepsy. Check the health guidance and contact the operator if anything applies to you before booking.

You receive a full refund if you cancel at least 48 hours before the activity date. The operator may cancel for extreme weather or unforeseen events, in which case you can reschedule or request a refund. The voucher is valid only for the selected date, and late arrivals or no-shows are not refundable.

My verdict: book for the water, prepare for the crossing

I would book this trip if I wanted a manageable first scuba session and a full day of snorkeling in the Keramas. The combination of clear water, several sites, helpful instructors, lunch, and boat facilities is appealing, and the starting price covers much of what you need.

I would pause if seasickness is a serious concern or if my main goal were extended scuba time. Bring motion sickness medicine, confirm exactly how many scuba sessions your package includes, and ask for help early if you are uneasy in the water. With those expectations set, this is a practical way to reach Kerama’s reefs from Naha.

FAQ

Is this trip suitable for someone without a scuba license?

Yes. The introductory package includes one guided scuba session and does not require a license. The guide provides instruction and equipment.

How many scuba sessions are included?

The introductory package includes one scuba session. Other water stops are for snorkeling unless you pay for additional scuba sessions.

Can I join only to snorkel?

The trip includes snorkeling opportunities, and you can choose to snorkel rather than take part in the introductory scuba session. The information provided describes an introductory scuba package, so check the available booking option if you want a snorkeling-only price.

Are sea turtles guaranteed?

No. Sea turtles are among the marine animals you may see, but sightings are not guaranteed.

How long does the trip take?

It is a full-day activity. The stated duration is about eight hours, the park itinerary is about eight and a half hours, and return to Naha is expected at around 5pm. The schedule can change with weather and conditions.

Is hotel pickup available?

Yes. Pickup and drop-off are available for hotels within Naha City. You can also meet at Marine House SEASIR Naha.

What is included in the price?

The package includes a professional guide, English- and Japanese-speaking staff, lunch, required equipment, towels, insurance provided by the operator, and round-trip transfers to and from the meeting point. Naha City hotel pickup and drop-off are also available.

Can I request a vegetarian lunch?

Yes. Tell the operator in advance if you need a vegetarian lunch. The lunch box cannot be changed on the day, and the menu may vary by season and ingredient availability.

What should I bring?

Bring swimwear, a change of clothes, beach slippers, and any personal medicine you need. Motion sickness medicine is a good idea if you are susceptible to seasickness.

What are the age and health restrictions?

Participants must be aged 10 to 60. The activity is not recommended for people with certain medical conditions, including high blood pressure and epilepsy. Check the health guidance and contact the operator if you have a concern.