Ukawa Kō Lighthouse

This cylindrical concrete tower stands 10 meters tall and is painted white. Its focal height reaches 12 meters above sea level, providing a geographic range of 11 nautical miles. The light emits an occulting white signal with a 6-second cycle, flashing once. The structure features a conical concrete base supporting the white concrete post. The site is accessible to the public, though the tower itself remains closed. It is located on the Ukawa harbor breakwater in Ishikawa Prefecture, Japan.

Why it matters: This lighthouse clearly marks the safe channel for vessels entering and departing Ukawa harbor, serving as a critical reference point on the breakwater's elbow.