Esaki Lighthouse

A Lighthouse Born of International Diplomacy

The story of Esaki Lighthouse begins not on the shores of Awaji but in the negotiating rooms of late Edo-period Japan. In 1867, just before the opening of Hyogo (modern Kobe) as a treaty port, the Tokugawa shogunate concluded the so-called Osaka Agreement with the British minister. Under this agreement, Japan committed to constructing five lighthouses to ensure the safe navigation of foreign vessels: Esaki, Mutsurejima, Heshizaki, Tomogashima, and Wadamisaki. Esaki was the first of the five to be completed.

Because Japan at the time lacked the technical expertise to build Western-style lighthouses, the British engineer Richard Henry Brunton was invited to lead the effort. Brunton, later revered as "the Father of Japanese Lighthouses," would oversee the construction of 26 lighthouses during his seven-and-a-half years in Japan. Esaki, his eighth Western-style lighthouse project in the country, was first illuminated on April 27, 1871 (Meiji 4), and has continued to operate ever since.

Why Esaki Lighthouse Was Designated an Important Cultural Property

Esaki Lighthouse was designated a National Important Cultural Property on February 9, 2022. The designation recognized several layers of historical value that few other surviving structures can claim.

First, it stands as one of the earliest Western-style lighthouses in Japan, ranking eighth overall in date of construction and third among those still standing today, after Kashinozaki Lighthouse (1870) and Mikomotojima Lighthouse (February 1871). As such, it is a tangible witness to Japan's modernization of its maritime infrastructure during the early Meiji era.

Second, the lighthouse preserves an extraordinary piece of engineering heritage. The optical equipment and associated systems were supplied by the renowned Stevenson firm of Scotland, a family business famous worldwide for lighthouse engineering. For the Japanese lighthouses, the Stevensons devised a pioneering seismic isolation device designed to cope with Japan's frequent earthquakes. Esaki Lighthouse is one of the precious surviving examples of this early anti-seismic technology, giving it significant value in the history of engineering as well.

For Awaji City, the designation carried particular weight. It was the third cultural property in the city to be designated by the national government and the very first architectural designation on Awaji Island, an honor long awaited after the earlier listing of Buddhist statues at Tozan-ji Temple in 1940.

Highlights and Features Worth Seeing

Visiting Esaki Lighthouse

The lighthouse is accessed via a stone staircase rising from Midori-no-Michishirube Esaki Park, a small roadside park on the prefectural road along Awaji's northern coast. The park offers free parking, benches, and restrooms, and is popular with cyclists and drivers as a rest stop.

Because Esaki remains a working lighthouse operated by the Japan Coast Guard, the interior is not normally open to the public, and visitors view the tower from outside the enclosure. In ordinary years, the lighthouse was opened to visitors on Lighthouse Day, November 1, though such openings have at times been suspended in recent years. Visitors should check ahead before planning an inside visit.

Please note that the road leading to the park is narrow in places, and visitors should drive carefully. The staircase from the park to the lighthouse includes steps that are preserved in their earthquake-damaged state and can be uneven underfoot.

Surrounding Attractions

Esaki Lighthouse pairs wonderfully with several nearby sites that deepen its story.

The Hokudan Earthquake Memorial Park, about 10 kilometers south of the lighthouse, preserves a 140-meter exposed section of the Nojima Fault as a designated Natural Monument, alongside a memorial house and hands-on earthquake simulator. The park offers an unforgettable perspective on the seismic event that left its mark on Esaki itself.

The Iwaya Port area, the ferry gateway between Awaji and Kobe, lies a short drive to the east and is known for its fresh seafood and clear views of the Akashi Kaikyō Bridge. The resort complex Awaji Hamarikyu and the popular Awaji Island West Coast gourmet zone with its stylish cafés and restaurants are both within easy reach for travelers spending a day on the island. For those interested in the lighthouse's architectural pedigree, the original lighthouse keeper's quarters have been relocated to Shikoku Mura, the open-air folk architecture museum in Takamatsu, Kagawa Prefecture, where they are registered as a Tangible Cultural Property.