Gunma

Kanayama Castle Ruins

Castles & history

The ruins of a Sengoku-period mountain castle in Ota with restored stone-lined ponds and walls, a National Historic Site.

Tsuki-no-ike pond and Ōte-koguchi, Kanayama Castle
💡 Free-license reference photograph from Wikimedia Commons; capture month is not confirmed.
Tsuki-no-ike pond and Ōte-koguchi, Kanayama CastleReference photo · selected conditions are not photographed yet

Capture month unconfirmed · Historical photo, not a live view

AUTUMN · Oct

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Weather for your date

Today shows live hourly weather. Future dates show the best available report.

🌙

18°C

Clear sky

💧 0% rain chance · wind 14 km/h

Hourly forecast

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Forecast: Open-Meteo

Packing checklist

No tips added for this spot yet.

Parking

Parking has not been verified for this place.

Search nearby parking ↗

Directions to Kanayama Castle Ruins

Google Maps directions ↗

Leave the start blank to choose your current location in Google Maps. The pin is an approximate landmark; check the entrance and live services in Maps.

A DIFFERENT JAPAN, EVERY MONTH

When to see this place

Typical viewing windows. Weather and bloom dates vary each year; these are not live forecasts.

No month-specific guide yet for Oct. This does not mean the place is closed.

Suitability

Stroller: Not verified

Nursing room: Not available

Noise level: moderate

Rules

Drones: banned

Coordinates

36.3178, 139.3775

Open in Google Maps

Nearby places

Within 30 km, closest first.

Sources, photo credits and verification

Place information: Official tourism source · Reviewed 2026-10-06

  • 1. Tsuki-no-ike pond and Ōte-koguchi, Kanayama Castle · Mocchy · Source ↗ · Public domain