One of the best spots to take pictures on social media in Ishigaki! Experience the spectacular view of the phantom island made of coral and the impressive snorkeling experience in Japan's largest coral reef "Hamajima" commonly known as the phantom island Hamajima can only be landed at low tide. It is also called the phantom island, and since it is surrounded by the sea on all sides, walking around Hamajima makes you feel like you are floating in the sea! Snorkeling experience Experience snorkeling in the sea of the largest coral reef in Japan, designated as Iriomote-Ishigaki National Park! Snorkeling in the clear blue sea will make you feel like a fish! The guide will give you a thorough lecture, so even if you are not good at swimming, please feel free to join us! Safe and secure The cumulative number of participants has exceeded 300,000! Many people have enjoyed safe tours! First-timers are welcome! Beginners are welcome for all activities. Most of the customers who participate are beginners. Safety equipment and guides will provide you with full support!