Swimming alongside a wild green sea turtle in Okinawa’s crystal water is a bucket-list moment — and surprisingly attainable. The reefs around Zamami in the Kerama Islands are among the best places in Japan to snorkel with sea turtles, which graze on seagrass close to shore and surface for air right beside swimmers. With easy beach-entry spots and guided tours that know where the turtles feed, it’s an experience open to families and casual snorkellers, not just divers.
This guide covers where to see turtles, tours and etiquette, the best season, what to bring and how to get there.
🗓️ Quick Reference
| Star animal | Green sea turtle (wild) |
| Best spot | Zamami (Kerama Islands) |
| Access | Ferry from Naha (Tomari Port) |
| Season | Roughly April–October (year-round possible) |
| Good for | Snorkelling, families, wildlife |
Where to see sea turtles
- Zamami Island (Keramas): beaches like Ama Beach are famous for turtles grazing close to shore — see our Kerama Islands guide .
- Other Kerama reefs and some main-island spots also have resident turtles.
- Turtles surface to breathe, so patient snorkellers often get close, respectful encounters.
Tours & etiquette
- Guided snorkel tours boost your chances and provide gear and safety briefings; good for beginners.
- Keep your distance — never touch, chase or block a turtle’s path to the surface.
- Use reef-safe sunscreen and avoid standing on or touching coral.
- Follow guides' and local rules; these are wild, protected animals.
Best season, what to bring & tips
- Snorkelling is best April–October; turtles can be seen year-round, conditions permitting.
- Bring swimwear, towel, reef-safe sunscreen; tours usually supply mask/snorkel/fins.
- Mornings are often calmer; check sea conditions and ferry schedules.
Combine your visit
Turtle snorkelling is part of a Kerama trip:
- Base on Zamami and enjoy its beaches and reefs — see our Kerama guide .
- Add a proper dive — see our diving guide .
How to get there
- Ferry from Tomari Port (Tomarin), Naha to Zamami (~50–70 min by fast boat).
- Many tours meet on the island; book ferry and tour ahead in summer.
