A speedboat whisks you to Hamajima — 'Phantom Island' — a sandbar that vanishes with the tide, encircled by coral so vivid it barely looks real. Snorkel its pristine reef with a certified guide in a group of just 8–10.
What to expect
Your speedboat skims 20 minutes across the East China Sea to a luminous sandbar that appears only at low tide — an almost surreal arrival. Fins on, you enter water so clear that visibility stretches beyond 30 metres, with coral towers rising from a white sandy floor. Your guide points out nudibranchs and resident sea turtles before you surface to a boxed Okinawan lunch on the sand. The return journey hugs the island coastline for panoramic views of Ishigaki's volcanic peaks.
Good to know
Departs from Aza Misakicho pier, a 10-min walk from the cruise terminal. Tour duration is approximately 3.5 hours — confirm your sailing time and build in a comfortable buffer. Wetsuit rental available; reef-safe sunscreen mandatory.
Sail there
Luxury cruises that call at Ishigaki — book through us, the fare is identical and your concierge stays on your side.