The lighthouse was built using donations from local merchants to ensure the safety of vessels waiting for the tide.
The structure acts as a 'tōmyōdai,' a type of lighthouse that was originally intended as a dedicated votive lamp for the Konpira deity.
During the Edo period, Tomonoura was a vital waiting port where ships would anchor for up to several days until the current in the Seto Inland Sea shifted.
The lighthouse is located on the 'Gangy' stone pier, which is a rare example of a stepped stone-paved wharf that allows for docking regardless of the tide level.
Its construction represents a transition in maritime technology from traditional religious navigational aids to more practical port infrastructure.
The Jōyatō Stone Lighthouse is the largest Edo-period stone lantern-style lighthouse still standing in Japan. Constructed in 1859, this iconic structure served as a navigational beacon for ships waiting for favorable tides in the sheltered waters of Tomonoura. Standing 5.5 meters tall on a stone platform, the lighthouse features a rotating oil lamp chamber atop a sturdy granite pedestal. It remains the symbolic heart of the historic Tomonoura port town, which flourished as a key junction for the Kitamaebune shipping routes. The structure is built from local granite and retains its original aesthetic, serving as a landmark for both historical preservation and traditional maritime architecture.
From the water's edge on the opposite side of the small harbor inlet looking back toward the town.
Visit during high tide when the water reaches the base of the stone pier for the best visual effect.
Combine your visit with a walk through the surrounding narrow, winding streets of the Tomonoura conservation district.
Use the nearby public viewpoints on the hillsides to capture the lighthouse against the backdrop of the port and islands.
Do not attempt to climb the lighthouse structure, as it is a protected cultural asset.
