30 minutes by boat from Ishigaki Island. Phantom Island (Hamashima) It is called "Phantom Island" because it becomes so small that it cannot be seen at high tide (when the tide is high) and appears at low tide (when the tide is low). Until a few years ago, it was literally named "Phantom Island" because it completely disappeared at low tide, but now it appears even at high tide due to typhoons and daily waves and winds. The phantom island is a mysterious uninhabited island with Mr./Ms. fragments and pure white smooth sand, and the surrounding waters Unfold with breathtaking clarity throughout the year. The contrast between the color of the clear sea and the white sand beach is truly spectacular! Book the earliest boat in the morning and go ashore It was before the typhoon, but we were able to land safely.