Available languages
4 hours
Mobile ticket
★Cruising in the mangrove river, a natural treasure!
Canoeing, a very popular activity, and SUP, a new activity from Hawaii, in the hirugi forest of Miyara River, a national natural treasure!
★"Phantom Island" is an island made of sandy beach floating in the ocean on the west side of Ishigaki Island. The name comes from the fact that it changes its shape depending on the tide level. You can swim with many fishes and corals in the surrounding sea! It is like a natural aquarium!
★Embark on an eco-friendly adventure with us, which our eco-tour is designed with sustainability in mind.
Specialized infant seats are available
Not recommended for travelers with spinal injuries
Not recommended for travelers with poor cardiovascular health
Not recommended for pregnant travelers
Public transportation options are available nearby
Suitable for all physical fitness levels
Free use of shower room (amenities not included)
For a full refund, cancel at least 24 hours before the scheduled departure time.
hot shower
SUP/canoe equipment set
Special offer page for participants (coupons redeemable at restaurants)
Photo data
Experience fee, liability insurance, sales tax
Snorkeling equipment, safety equipment (life jacket, special shoes), wetsuits (winter)
Prescription Mask
Select a pickup point
Important Tour Information Please read carefully for a safe and enjoyable experience: Punctuality & Contact: Be on time. Late/no-shows may be canceled with a fee. If delayed, contact us promptly. Pre-Tour Confirmation: We’ll send meeting info by the day before. Provide a Japan-based contact. No message by 6 PM? Contact “ISHIGAKI ADVENTURE PiPi” via ticket info. Late Bookings (after 5 PM): Meet directly at Ishigaki Port Remote Island Terminal. Participation: Ages 3–59 only. *Children aged 3 to 11 may be guided to use a more stable canoe instead of SUP depending on the sea conditions and the number of participants on the day. If you’re concerned about your physical strength or have a fear of the ocean, please consult us in advance. Gear & Safety: Life jacket, fins, and mask required. Refusal may mean exclusion. Follow guide instructions. Weather: Runs rain or shine. May cancel if unsafe. Preparation: Wear swimwear. Use restroom in advance (none on-site). No alcohol allowed. Time: Meeting/end times may vary. Showers: Hot showers near terminal (ask guide). Language: Guided in Japanese or English. May be Japanese only.
Mangrove Canoeing Course: This is a course where you ride a canoe through the mangroves.
The rental fee for the canoe equipment is also included.
Pickup included
Mangrove SUP Course: This is a course where you ride a SUP through the mangroves.
The rental fee for the SUP equipment is included.
Pickup included
18 reviews
Total reviews and rating from Viator & Tripadvisor
Coastal42823286313,
Jul 15, 2025
- Review from Tripadvisor
The staff were friendly, cheerful and fun! ◆Balas Island Snorkeling It was amazing to see so many table corals! Physically, I had a lot of fun without any problems. It was amazing to see the staff, Mr. Kaji, diving deep in his snorkeling gear and taking pictures of us. lol ◆ Mangrove sup To be honest, the 28-year-old was physically tough on a small woman who usually works at her desk, but the staff, Koma-chan, was waiting for me to teach me some mangrove trivia and said, "Good lad!" I was happy to hear that they complimented me. The staff, Sei-chan, pulled me when I just couldn't catch up with the headwind and current, which was a big help. It was interesting to see some goby ones and crabs at the base of the mangrove! Canoeing might be better for the physically weak lol

大地斎,
Jun 27, 2025
- Review from Tripadvisor
It was my first time canoeing with my wife and I, but thanks to the easy-to-understand guidance from the guide and the support we received even after we got out on the river, we really enjoyed the mangrove forest cruise! It was so much fun that I almost bought a canoe. I think this is a great activity where you can easily experience the nature of the stone walls. Thank you very much.

Camper54188833903,
Mar 5, 2025
- Review from Tripadvisor
In canoeing, they taught me how to row carefully and kept pace, which I really enjoyed even in my first experience. They also gave us a detailed introduction to the plants and we were able to enjoy the mangroves gracefully. The weather was not good and the place changed, but we could see fish on many reefs and enjoyed beautiful sea views throughout. It was my first time snorkeling and I was confused by the snorkeling and found it difficult at first, but I was able to participate with peace of mind because my guide was always watching over me and talking to me. We were so happy to have so many wonderful photos taken of us, both canoeing and snorkeling, not only of us but also of the scenery! He also told me about various recommended spots on the way to and from school, which was very helpful, and all the recommended places were good and I fully enjoyed the stone walls! I hope to participate again at a different time!




568taf,
Mar 4, 2025
- Review from Tripadvisor
We had a fabulous experience on Ishigaki Jima! My husband and I absolutely loved our day. We kicked off the morning with snorkeling, and although it was a bit chilly, the water was warm, clear, calm, and making it perfect for spotting heaps of fish and even a couple of sea snakes. In the afternoon, we went stand-up paddleboarding (SUP) through the mangoves, which was equally stunning. A massive thank you to Diego, who captured so many incredible photos, and to the entire team whose energy and enthusiasm made this tour unforgettable. We highly recommend this tour to anyone visiting Ishigaki Jima!



eggs and jam,
Sep 3, 2024
- Review from Tripadvisor
Really fun day out. Snorkelling was amazing. SUP was really cool. We saw the mangroves up close. Our guide Yuma really made the trip. He spoke perfect English and was fun to talk to :)
Robert M,
Aug 13, 2024
- Review from Viator
This was incredible. We have been in Japan for three weeks and now sadly at the end of our holiday. Japan has been amazing but this was voted our favourite as a family. The guides were awesome and all activities well organised and fabulous. The snorkling and phantom island were mind-blowing and what a chance of a life time to see a coral reef. Our guides also took photos and shared (without additional charge). Would highly recommend.



竹下隼,
Mar 15, 2024
- Review from Tripadvisor
The tour was a meaningful and enjoyable experience. The good points were that we could see the magnificent view and experience something out of the ordinary. While snorkeling, we could see colorful fish and coral reefs, and the Phantom Island was a photogenic spot, so the tour guide took lots of photos for us. At the mangrove SUP, we were able to learn a lot about the secrets of the mangroves while getting some exercise. Please note that the sea in March is cold.



きゃなき,
Oct 31, 2023
- Review from Tripadvisor
We participated at the end of October as a couple in their 30s! It was a busy schedule with mangrove SUP in the morning, snorkeling and landing on the phantom island in the afternoon, but our guide Misaki made it fun from start to finish, and we got along so well that I wondered if we were all just three people. 🏝️ The water in the mangroves was surprisingly clean, and I was worried that I would get muddy if I fell in, but I was able to walk normally in the shallow areas and the water was clean. We were blessed with good weather for snorkeling, and were able to reach the point without getting seasick at all! During snorkeling, the guide pulled us with a kind of helper boat, so when I got tired of swimming, I relied on him and grabbed the board and went forward in the sea. 🐠 I couldn't see any clownfish, but I was soothed by the beautiful coral and fish. The phantom island was more beautiful than I imagined and I was very moved. I have wonderful memories, so I would like to ask you to come to Ishigaki Island again! Thank you very much!

結女横,
Oct 28, 2023
- Review from Tripadvisor
The weather was great, so the sea was beautiful and we were able to enjoy the activities. The instructor who accompanied us gave us some recommendations for shops and helped us take photos, so we had a lot of fun during the experience! If I come to Ishigaki Island again, I'd like to experience this here! Thank you very much!
Tay O,
Aug 26, 2023
- Review from Viator
I highly recommend this tour. The agency emailed me the day prior regarding time and pick up location. Pick up location was easy to find. I was staying at hotel Miyahira, which was right across the street from the port. The English speaking guides were all extremely kind and helpful. There was a two hour lunch break after canoeing at the port with plenty of restaurants options and a Family Mart. Snorkeling was fun. The snorkeling equipment was all high quality. My sister was a first time snorkeler and was nervous. The tour guide stayed with her the entire time to guide her and ensure her safety. He definitely went above and beyond. Guides took pictures of us throughout on their Go Pros. Phantom Island was beautiful. The tour began around 9:00 and ended around 4:15. Everything was so convenient and everyone was so nice.
Operated by ISHIGAKI ADVENTURE PiPi