• The sea of Kumejima is known for its high transparency, but the sea of Hatenohama is by far the best!
• Enjoy the endless scenery of the emerald green sea and white sandy beach on a glass-bottomed boat.
• Recommended for those who have a short stay on Kumejima and would like to spend the remaining half day visiting other sightseeing spots, or those with small children.

While enjoying a 25-minute tour of the ocean floor on a glass-bottomed boat, you can enjoy a 25-minute tour of the ocean floor while floating about 3 kilometers southeast of Kumejima. We will guide you to Hatenohama, an island made of only sand and coral fragments. The half-day tour takes approximately 2 hours and 30 minutes, and the stay at Hatenohama is 1.5 hours from April to October, and 1 hour from November to March. Recommended for those who want to visit other sightseeing spots or those traveling with small children. Snorkel rental is also available as an option!