The Naha Full-Day Kerama Islands Snorkeling Tour (Bestseller)

The Kerama Islands sit about an hour by boat west of Naha, and the water there is so clear it has its own name: Kerama Blue, a blue-white clarity that regularly shows 30 metres or more of visibility. This full-day trip makes the most of that. Instead of a single stop, the crew reads the wind and swell each morning and chooses two or three of the best sheltered reef sites, so you get variety and calm water rather than fighting a rough exposed spot. A certified instructor stays in the water with the group, which is why it works equally well for someone snorkeling for the first time and someone who just wants to log a good day over the reef.

At 824 reviews it is the highest-volume tour we cover, and the reason is simple: clean gear in every size, GoPro rental so you go home with footage, and optional hotel transfers that take the logistics out of your morning. It is the safe, proven pick among our Kerama Islands boat tours when you want a full day on the water without gambling on an unknown operator.

The reef sites around the Kerama Islands are protected national park water, and the marine life reflects that:

• Green sea turtles grazing and surfacing over the seagrass and reef
• Clouds of butterflyfish, damselfish, and parrotfish across the coral
• Healthy branching and table coral gardens in the shallows
• Clownfish tucked into anemones near the reef base
• Schools of fusiliers and snapper hanging in the blue
• Occasional rays cruising the sandy patches between reefs

What's Included

• An 8-hour cruise from Naha to two or three Kerama reef sites
• A certified instructor guiding in the water
• Clean snorkel gear (mask, snorkel, fins) in all sizes
• Wetsuit or buoyancy aid for the reef stops
• Optional roundtrip hotel transfers from Naha

Not Included

• GoPro rental (available as a paid add-on)
• Lunch and drinks unless stated on your chosen option
• Reef-safe sunscreen, towel, and swimwear
• Gratuities for the crew (optional)

It is a well-run day, but a little preparation makes it smoother.

• What to bring: swimwear under your clothes, a towel, reef-safe sunscreen, a hat, sunglasses, and motion-sickness tablets if you are prone to it
• Not allowed: touching, standing on, or breaking the coral, and no littering — the Keramas are protected national park reef
• The boat picks the sites by weather, so the exact reefs vary day to day
• GoPro rental and hotel transfers are add-ons — select them when you book
• Confirm whether your chosen option includes lunch, or bring your own bento
• Non-swimmers are welcome with a buoyancy aid, but you should be comfortable floating in open water

Want the exact same Kerama water with lunch and tea already included? The Kerama Islands day trip with lunch covers three spots with a bento on board. If you would rather focus on turtles from a single calm beach, the Tokashiki Island turtle snorkeling tour is the gentler, more relaxed option.

This is the pick when you want a proven, full-day Kerama trip that suits a mixed group.

• First-timers who want an instructor in the water with them
• Confident snorkelers who want a full day and several reef sites
• Travelers based in Naha who want easy pickup and transfers
• Anyone who wants GoPro footage of turtles and coral to take home

Not Suitable For

• Travelers who only have a couple of hours to spare
• Anyone wanting a private or very small guided group
• People who cannot manage a roughly one-hour boat crossing each way