Arai Castle, Japanese castle in Miura district, Japan.
The fortification stands on a 26-meter-high promontory between Koajiro Bay and Aburatsubo Bay on the western coast of Miura Peninsula.
The castle endured a three-year siege by Hojo Soun forces until its fall in 1516, marking the end of the Miura clan's control.
The name Aburatsubo originated from the dark coloration of the sea water during the final battle, resembling an oil-filled container.
Visitors can reach the castle ruins by taking a Keikyu bus from Misakiguchi Station to Aburatsubo terminal, followed by a five-minute walk.
The castle grounds currently house the University of Tokyo Marine Research Laboratory, with remnants of moats and earthen fortifications visible along hiking trails.
Location: Miura district
Location: Miura
Address: 1027 Misakimachi, Koajiro, Miura 238-0225, Kanagawa Prefecture
GPS coordinates: 35.15989,139.61297
Latest update: April 8, 2025 16:40
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