畳石

Kumejima’s famous Tatami Rock formation (tatami ishi) is located on the coast of Ou Island, just behind Bade Haus Kumejima. During High tide, the rocks are covered in the beautiful blue waters surrounding Kume Island, but during low tide, the waters recede, leaving the uniquely shaped rock formation visible.

Over centuries, geologic forces have pressed rocks together, giving them a unique appearance that many say resembles the tatami mats common to Japanese households.