Keya no Ooto

At the northwestern tip of Itoshima, along the rugged Genkai Sea, lies a breathtaking natural formation carved by powerful waves. Visitors are drawn to this dramatic coastal site where a striking cave entrance, framed by honeycomb-like basalt columns, creates a sense of stepping into another world. Many gather along the scenic walking trails leading to a viewing platform, eager to take in the expansive ocean vistas and capture the moment. On calm days, boat tours offer a chance to get up close to the cave’s interior, revealing its mysterious beauty. Each visit brings a new experience as the changing light casts shifting shadows across the rock surfaces. This captivating spot offers a rare opportunity to witness the raw force of nature and a serene coastal landscape all in one place.