Sekizaki Lighthouse, Cast iron lighthouse at Cape Seki, Japan.
Sekizaki Lighthouse is a cast iron structure located at Cape Seki in Oita, standing approximately 11 meters tall. The tower marks an important navigation point along the Hōyo Strait, serving vessels traveling through these coastal waters.
The lighthouse was built in 1901 and became the first permanent navigation aid in Oita Prefecture. Its construction marked a turning point in maritime safety for the region.
The name is officially read Sekisaki, though locals commonly say Sekizaki. The lighthouse marks one of the reference points used in Japanese law to define the boundary of the Seto Inland Sea. Its fourth-order Fresnel lens, made in Britain in 1870, is now displayed at the nearby Sekizaki Kaiseikan museum.
The lighthouse is accessible at Cape Seki and offers views of vessels navigating the Hōyo Strait. The best time to visit is during daylight hours to see the structure and the surrounding landscape clearly.
The fourth-order Fresnel lens used here for about a century was made in Britain in 1870, before the lighthouse itself was completed. It was replaced by a high-intensity LED lamp on 13 February 2009, and the old lens is now displayed at the nearby Sekizaki Kaiseikan.
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