Kanayama Castle Ruins (金山城跡)
Flow of the course
About this spot
Ruins of a Sengoku period mountain castle selected as one of Japan's 100 Famous Castles. Restored magnificent stone walls and the mystical circular pond known as Hinokiku (日ノ池) remain, and from the Nitta Shrine at the main keep summit, you can see the Kanto Plain in its entirety. It's about a 20-minute pleasant hike from the parking lot below the observation deck to the main keep.
Tips
From the mountain-top parking lot onward, stone-paved paths and stairs continue, so a baby carrier is safer than a stroller. Sneakers are essential, and don't forget water in summer.
Best time to visit
Allow 1-1.5 hours. The view is best on clear days.
How was this spot?
Access & map
40-106 Kanayama-cho, Ota City, Gunma Prefecture 373-0027
Model course featuring this spot
Ota Children's Country and Kanayama Castle Play Trip
Gunma
Other courses featuring this place
2026 Nitta Festival Fireworks Display - Full Day Course
A Panoramic View of the Kanto Plain from the 239-Meter Summit - Stroll Through Castle Ruins with Remaining Stone Walls
2026 Tosui Bridge Fireworks Display – A Full-Day Course
Explore a Nationally Designated Historic Site with Stone Walls at the Summit
Explore features & model courses
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