Hagi Castle Ruins

Hagi Castle was built in 1604 by Mōri Terumoto as the headquarters of the Chōshū Domain, serving the Mōri Clan as their seat of power for over 250 years. Following the Meiji Restoration, the castle was demolished by government order in 1874, leaving only its stone walls, moats, and foundations intact. The ruins were designated a National Historic Site and, in 2015, became part of the UNESCO World Heritage Site known as the Sites of Japan's Meiji Industrial Revolution.

Hagi flourished during feudal times as the center of the Chōshū domain, and near the end of the Edo period the domain rose to national prominence as a key driver of the Meiji Restoration — the movement that toppled the Tokugawa shogunate and restored imperial rule. Many Chōshū elites went on to lead Japan's large-scale modernization, making Hagi a place where many of the seeds of Japan's industrialization were planted.

The site today covers approximately 200,000 square meters within Shizuki Park, where visitors can walk among the remaining stone walls and moats, view the foundation of the former castle keep, and visit the Hana-no-e Teahouse, where feudal lords once held tea gatherings. The park also contains a shrine and Mount Shizuki, whose peak can be reached via a 20-minute hike.

Bicycles are permitted inside, making it easy to explore the spacious grounds. Free VR displays on-site allow visitors to see a digital reconstruction of the castle as it originally appeared. The park is also one of the region's most popular cherry blossom spots in spring. International visitors should also note that the Hagi Wonder Pass — a free three-site admission ticket including Shizuki Park, obtainable by completing a short smartphone survey via QR code — has been available as a promotional offer for overseas travelers.

The castle ruins are approximately 2.5 kilometers from Higashi-Hagi Station — a 10 to 20-minute bicycle ride or a 30 to 45-minute walk. Alternatively, visitors can take the Maru Bus West Loop and alight at the Shizukikoen Iriguchi bus stop. Admission is ¥220, which covers entry to the castle ruins area, the Hana-no-e Teahouse, and the Mori House.