
Swim with Sea Turtles in Miyakojima
Small-group snorkeling tours built for beginners and families. Adults ¥6,500, children ¥6,000, ages 5 and up — with free photos and videos, and free cancellation until the day before your tour.
Miyakojima's Sea, at Your Family's Pace
Sea Turtle Brothers (Umigame Kyodai) is a small-group marine tour operator on Miyakojima, Okinawa. Our signature experience is snorkeling with wild sea turtles in the island's clear, calm waters, where you can also meet clownfish and colorful tropical fish. Because these are wild animals, sightings can never be 100% guaranteed — but our encounter rate is high, and we keep groups small so you can spend slow, unhurried time with the turtles instead of jostling with a crowd.
Safety always comes first. Every tour starts with a safety briefing, all tours are covered by insurance, and our guides are used to first-time snorkelers. Children from age 5 can join, and we provide kid-sized equipment, making this an easy choice for families building vacation memories together.
Your guide captures the whole experience with an underwater camera, and every high-quality photo and video is yours free of charge. Beyond turtle snorkeling, we also offer night tours and sunset SUP experiences across Miyakojima's sea and nature, from morning to night.
Our Tours
Five experiences across Miyakojima's sea and nature — from our signature sea turtle snorkeling to night jungle expeditions and sunset SUP.

Sea Turtle Snorkeling Tour
Swim alongside wild sea turtles in shallow, calm water — our signature small-group tour.

Private Sea Turtle Snorkeling Tour
One group only — your own guide, your own pace, and the turtles all to yourselves.

Jungle Night Tour
Hunt for giant coconut crabs and nocturnal wildlife with our Amazon-trained guide — babies welcome.

Sunset SUP — One Group Per Day
Glide across golden water at magic hour on a stable stand-up paddleboard.

Private Jungle Night Tour
The night expedition, fully reserved for your group — explore at exactly your own pace.
Coming SoonSlider Boat Snorkeling
Coming soon — snorkeling from a boat with its own water slide and diving deck.
How Booking Works
- 1
Choose your plan
Browse our tours and pick the plan and date that fit your trip. Sea turtle snorkeling starts at ¥6,500 for adults and ¥6,000 for children (ages 5 and up).
- 2
Send a booking request
Submit a booking request through our website. You'll need to log in with LINE, a free messaging app, to send it. Please note: a booking request is not a confirmed reservation.
- 3
Get confirmation via LINE
Our staff will check availability and reply to you on LINE. Your booking is confirmed only after you receive our reply.
- 4
Pay cash on the day
No prepayment needed — simply pay in cash on site on the day of your tour. Cancellation is free until the day before your tour.
Why do I need LINE?
LINE is a free messaging app — it's the most popular way to chat in Japan, and it's how we confirm bookings and stay in touch with guests before the tour. To send a booking request, you'll need a LINE account, so we recommend downloading the app from the App Store or Google Play before booking (it only takes a minute). Remember, your booking is not confirmed until our staff replies to you on LINE. If you have questions or aren't able to use LINE, feel free to email us at info@umigamekyoudaimiyakojima.com or call +81-80-5344-2439.
Frequently Asked Questions
Planning your first snorkeling trip in Miyakojima? Here are answers to the questions travelers ask us most — from swimming ability and kids' participation to cancellation and payment.
Do I need a wetsuit?
From around November through April, water temperatures drop, so we recommend wearing a wetsuit. Rental fees vary by plan: some plans include a wetsuit in the price, while others charge a separate fee. Please check the details of each plan for more information.
I'm not a confident swimmer. Can I still join?
Absolutely! You'll wear a life jacket, and an experienced guide stays close by to support you at all times, so even non-swimmers can join with peace of mind.
Where is the meeting point?
The meeting point depends on the plan you book. Once your booking is confirmed, we'll send you detailed directions to the meeting point and parking via LINE (the messaging app we use for all communication). If you have any questions, feel free to message us on LINE anytime.
Where can I ask questions or get advice?
We accept questions and inquiries 24 hours a day via LINE, the messaging app we use for all communication. Feel free to send us a message anytime, and our staff will respond carefully during business hours (7:00 AM to 6:00 PM).
Can young children go in the water?
Yes. Children ages 5 and up can join most of our snorkeling tours. With a life jacket and flotation gear, even kids who can't swim well can enjoy the water safely. That said, please keep things comfortable for your child depending on wave conditions and how they're feeling.
What if my child is afraid of the waves?
Start at a beach with calm waves, such as Aragusuku Beach or Shigira Beach, and let your child get comfortable in shallow water where they can stand. With a life jacket on and a parent close by for support, kids gradually get used to the water.
Questions? We're Happy to Help
Message us on LINE anytime, email us, or call during business hours (7:00 AM – 6:00 PM, open year-round).