Okinawa Ishigaki Phantom Island and Blue Cave Snorkeling

Blue Cave Snorkeling Snorkel around the popular "Blue Cave"! As the name suggests, the inside of the cave shines blue. Let's swim with lots of fish! Landing & Snorkeling at Phantom Island "Phantom Island" is a sandbar off western Ishigaki whose shape changes with the tide. The surrounding "Sekisei Lagoon" is one of the largest coral reefs in Japan, like a natural aquarium! Free photo data! Your guide takes pictures with a waterproof camera and gives you the data for free. Beginners are welcome! Our guides support first-timers and anyone a little afraid of swimming! Our eco-tours are designed with sustainability in mind. Why PiPi: No.1* marine activity shop in Japan in 4 categories, 500,000+ guests guided. Okinawa-certified safe operator; all guides are certified water rescuers. *Survey of 5 major shops by Japan Marketing Research Organization, Jun 29-Jul 3, 2026. Does not guarantee superiority.