Kerama Islands
A small archipelago west of Okinawa's main island, known for water clarity, coral reefs and humpback whales in late winter.
Updated 20 October 2026

AI illustration
The Keramas sit about thirty kilometres west of Naha and are close enough for a day trip, which is both their appeal and their problem. Three inhabited islands, Zamami, Aka and Tokashiki, lie in a shallow group of reefs and channels where the water is clear enough that boats appear to float above their own shadows. The colour has a name in Japanese tourism, Kerama blue, and it holds up in person. The reefs were made a national park in 2014. Humpback whales come into these channels to breed between January and March, watched from small boats out of Zamami, and turtles feed off several of the beaches.
History
The islands belonged to the Ryukyu Kingdom from 1429 to 1879, when islanders served as navigators on the kingdom's trading ships to China (Wikipedia, Kerama Islands).
What you'll find
- Furuzamami beach - a long reef-backed beach on Zamami with clear shallow water.
- Whale watching - humpbacks in the channels between the islands from January to March.
- Reef snorkelling - coral and turtles close to shore off several of the beaches.
- The lookouts on Zamami - hill viewpoints over the channels and the smaller islets.
When to go
April to October suits swimming, with the calmest sea in early summer; typhoons interrupt late summer without much notice. Whale trips run from January to March, when the water is too cold for comfortable snorkelling. Day trippers should take the first boat out and check the last boat back, since crossings are cut when the wind picks up.
What to expect
Boats are cancelled by wind often enough that a day trip can evaporate, and the fast ferry sells out in summer. Accommodation on the islands is small-scale and books early. There is very little shade on the beaches and no substantial towns or shops. Parts of the reef have bleached in recent warm years, so conditions vary a lot from site to site.
Nearby
Naha on the main island of Okinawa, the departure point for every crossing.
Key facts
Source: Wikidata, item Q198422, read on 18 October 2026.
What to pack for Kerama Islands
Chosen from what this place is for. Tap a kit for the full checklist.
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Your own mask + snorkel - A well-fitting mask is the single biggest comfort upgrade underwater. Find on Amazon
- Binoculars - The single best wildlife tool - even a compact pair transforms a sighting. Find on Amazon
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.




