Sawada Castle, Medieval castle ruins in Sado, Japan.
The castle complex extends across flat terrain with stone foundations and earthen walls, representing a traditional hiraijirō-style fortification design.
Construction of the castle began in 1602 under Tokugawa Shogunate supervision and continued until 1611, serving as a regional administrative center.
The castle site contains architectural elements that demonstrate the military engineering methods used by Japanese castle builders in the early 17th century.
Visitors can reach the castle ruins by taking a ferry to Ryotsu Port on Sado Island and following the northern coastal road.
The castle earned the name 'Submerged Castle' due to its architectural features and positioning on the landscape of Sado Island.
Location: Sado
GPS coordinates: 37.97136,138.37250
Latest update: March 6, 2025 13:12
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