Wayfinder Atlas

Karasawayama Castle Ruins

In Japanese: 唐沢山城跡
Open by month

Open in January. No seasonal closure recorded. New Year (Dec 29 – Jan 3): open.

Open in February. No seasonal closure recorded.

Open in March. No seasonal closure recorded.

Open in April — at its best. Cherry blossoms late March to early April, azaleas mid April to early May, autumn leaves mid to late November.

Open in May. No seasonal closure recorded.

Open in June. No seasonal closure recorded.

Open in July. No seasonal closure recorded.

Open in August. No seasonal closure recorded.

Open in September. No seasonal closure recorded.

Open in October. No seasonal closure recorded.

Open in November — at its best. Cherry blossoms late March to early April, azaleas mid April to early May, autumn leaves mid to late November.

Open in December. No seasonal closure recorded. New Year (Dec 29 – Jan 3): open.

Checked against the official site on 2026-10-12.

Karasawayama Castle Ruins
Photo: 韋駄天狗 / CC BY 3.0, resized

The ruins of a mountain castle over 400 years old, with earthwork gates, a deep moat cut and a large well that still holds water. The summit looks over the Kanto Plain.

National Historic Site; one of the 'Next 100 Fine Castles of Japan'

Nearby

Travel times are rough estimates by car.

Plan by month in the app →

Best time
April, November — Cherry blossoms late March to early April, azaleas mid April to early May, autumn leaves mid to late November
Getting there
About 10 min by taxi from Tanuma Sta. (Tobu Sano Line), or about 70 min on foot
Easier with a tour or car
Fee
Free
Time needed
1 h 30 min

Checked against the official Japanese website on 2026-10-12. Report outdated info