Blue Cave Snorkeling: Explore Ishigaki's Phantom Island

Embark on an eco-friendly adventure with our Ishigaki Snorkeling Tour! Explore the stunning Blue Cave, swim with colorful fishes, and visit the floating sandy beach, Phantom Island. Discover one of Japan’s largest coral reefs in a sustainable way.

Duration: 4 hours
Cancellation: 24 hours
Highlights
  • Ishigaki Terminal - Essential Information (Please Review Carefully)
    Punctuality & Contact:
    Ensure timely arrival. Unnotified late arrivals may incur a cancellation fee. Notify us in advance if you anticipate a delay.
    Final Confirmation:
    We will reach out by the day before with meeting details. If you haven’t heard from us by 6:00 PM, please use the…
What's Included
  • Hot showers near Ishigaki Port Terminal
  • Special Offer Page for Participants
  • Photo data
  • Wetsuits for winter
  • All Fees and Taxes
  • Safety equipment including life jackets and special shoes
  • Experience fee, liability insurance, sales tax
What's Not Included
  • Use of snorkeling equipment
Additional Information

Blue Cave Snorkeling
This is a snorkeling tour around the popular and unexplored “Blue Cave! As the name suggests, the inside of the cave is shining blue. Let’s swim with a lot of fishes!
Landing & Snorkeling at Phantom Island
Phantom Island” is a sandy island in the ocean on the west side of Ishigaki Island. The name comes from the fact that the shape…

Location
ishigaki terminal
Look for the red mailbox next to the central entrance of the Euglena Ishigaki Ferry Terminal. A message with important information will be sent the day before the tour. If you do not receive it by the evening of the day before, please contact us via WhatsApp at: +81-80-9508-9146
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
4.2
(18 Ratings)
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Paivi0jala
Sep 21, 2025
Osaki beach snorkeling at Ishikagi - We had a great snorkeling tour with Makoto at Osaki beach. We could not take the original tour to Phantom Island and Blue Cave due to approaching typhoon. The experience was anyway wonderful with a fantastic and super friendly guide Makoto🤩🥰
Review provided by Tripadvisor
H1746mpannak
Aug 21, 2025
Blue Cave snorkeling experience - We had an amazing tour in Blue Cave. We were lucky to see snake fish, beautiful fishes and even turtles! All thanks to our experienced guide. The cave itself is small, nothing special but the snorkeling at this area full of corals and colors is absolutely beautiful!
Review provided by Tripadvisor
Caribouso
Aug 19, 2025
Very nice Snorkeling experience with beautiful backgrounds and quite a few fish all equally beautiful 🥰 - Very nice moments at the blue cave in the morning in Snorkeling nearby! Very good fluid and efficient organization! Our guide Makoto was very attentive and super friendly! In the afternoon we took the excursion to Phantom Island and snorkeled! Here again great organization and a very friendly and kind guide team who were keen to make us have a good time! It’s successful thank you😁
Review provided by Tripadvisor
Brandyp253
Apr 16, 2025
Fantastic experience - My friend and I went on both the Phantom Island/Sakura beach trip. It was so much fun snorkeling and seeing the many types of fish and creatures. We even saw 2 sea snakes and our guide, Sebastian captured it on camera! He is a good communicator and picked us up from the Ferry port terminal. I would recommend this excursion to anyone with a sense of adventure.
Review provided by Tripadvisor
Jbaldi4
Aug 29, 2024
Great times with great people in paradise - One of the most beautiful places on earth. The blue cave portion of the trip was amazing, just being there left me with a great sense of calming peace. The snorkeling off the coast felt like we snuck into an aquarium at an academy of science, there was so much life and it was so pristine and clean. Phantom island was so gorgeous we felt like we were inside of a post card photo. Juan Sebastian and Moe, our guides throughout the day, and the rest of the crew were awsome. They helped me learn so much Japanese and they spoke English well. Thank you so much!! Hope to see you soon!
Review provided by Tripadvisor
Mblit
Jul 7, 2024
Great Adventure with Awesome guides! - What an amazing experience and amazing guides!!! Our guide Kota was amazing!!! Couldn't have been more friendly and made sure we got ahead of every other tour. He dove down deal and got amazing pictures for us!!! Made sure we had the times of our lives and made sure we were safe! The tour was amazing of the cave and the snorkeling was top notch seeing the most amazing fish! Only downside was the AC wasn't that good on the ride and it was a scorcher of a day!
Review provided by Tripadvisor
Britney_s
Jul 7, 2024
Snorkeling w/ Naomi - Initially we tried to escape getting our picture taken, but in the end we were happy that Naomi capture our memories. She was very attentive and accommodating. True customer service at its finest!
Review provided by Viator
Wendy_r
Oct 12, 2024
Not as described, left disappointed - I received notification that the Phantom Island part was cancelled due to high winds. Okay, I get it. I was told that snorkeling at Osaki beach would be substituted. Okay. The meeting time and place were the same. Received a message that read, "Pick you up on o o" I received notifications that it started at 8:00 that morning on my phone. I was at the meeting place at 7:45. It was close to 8:30 when I contacted the company and was told it was at 9:00. I didn't find out until after snorkeling that we were not going to Blue Cave and that my afternoon had been substituted for the mangrove tour on canoe or paddleboat. Snorkeling at Osaki beach was great! I thought this was a whole day affair, as in we would go to the next location. Nope! We were brought back to the terminal, told to find somewhere to eat lunch, and meet back at 1:00 for the mangrove tour. When I asked about Phantom Island/Blue Cave snorkeling the next day and the day after, I was told that it's cancelled due to winds and that it would be cancelled for the month since it's close to winter. Then why have it on the Viator website as an activity to book if it is just going to be cancelled and substitutions offered. Even the refund seemed sketchy. I've already paid on my credit card and was told the refund would go on my credit card and I would have to contact the credit card company.
Review provided by Viator
Christina
Sep 7, 2025
Aflyser tur - giver ikke penge retur - De aflyste vores tur og tilbød pengene retur. Grunden var dårligt vejr. Vejret var overhovedet ikke dårligt på dagen for turen… jeg takkede jeg ja til penge retur og bookede med et andet firma. Har her 2 måneder senere stadig ikke modtaget penge retur. Simpelthen så ringe. Hørte fra andre, at de ofte aflyser fordi, de får en større grupper eller et bedre tilbud. Hørte også, at andre har kæmpet med at få penge retur. They cancelled our trip and offered a refund. The reason was bad weather. The weather wasn't bad at all on the day of the trip... I accepted the refund and booked with another company. 2 months later I still haven't received a refund. Simply so bad. I heard from others that they often cancel because they get a larger group or a better offer. I also heard that others have struggled to get their money back.
Review provided by Tripadvisor
Valarie_j
Jun 27, 2025
They cancelled last... - They cancelled last minute and did not give a refund or cancel the trip so now I am stuck fighting to get a refund.
Review provided by Viator
From $113
up to 15 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).