Gifu

Oga Castle Ruins atop Mt. Kojo

Sunrise ViewsMountain ViewsCastle RuinsHiking

Ruins of the Toki clan’s mountain castle remain along the steep trails of 407.5-metre Mt. Kojo. A miniature castle at the summit overlooks Mt. Kinka, the Nobi Plain and, in clear conditions, Mt. Ibuki and distant Nagoya; cloud inversions and sunrise are weather dependent.

Best time to visit: Oct–Nov – Autumn summit hike · Sep–Nov – Clear cool mornings · Sunrise and possible cloud sea

Oga Castle Ruins and the summit viewpoint on Mt. Kojo
💡 Official tourism reference image; current appearance and access can change.
Oga Castle Ruins and the summit viewpoint on Mt. KojoReference photo · selected conditions are not photographed yet

Capture month unconfirmed · Historical photo, not a live view

AUTUMN · Oct

JanFebMarAprMayJunJulAugSepOctNovDec

Weather for your date

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

☁️

16°C

Overcast

💧 8% rain chance · wind 4 km/h

Hourly forecast

☁️15°💧 8%
☁️15°💧 8%
☁️15°💧 6%
🌤️15°💧 4%
🌤️17°💧 12%
🌤️19°💧 26%
🌤️21°💧 43%
🌤️21°💧 45%

Forecast: Open-Meteo

Packing checklist

  • Also useful: Drinking water and sun protection, Hiking shoes with strong grip

Parking

Parking has not been verified for this place.

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Directions to Oga Castle Ruins atop Mt. Kojo

Google Maps directions ↗

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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.

SEASONAL · DAY

Year-round · Mountain castle hike

The ruins and viewpoint can be visited in suitable conditions throughout the year, but snow, heat and wet trails require route judgment.

Tourism source ↗
AUTUMN · DAY

October–November · Autumn summit hike

Cooler hiking weather and surrounding colour can make autumn attractive. Check trail conditions and daylight.

Tourism source ↗
AUTUMN · SUNRISE

Clear cool mornings · Sunrise and possible cloud sea

The summit is recognized for sunrise views; a sea of clouds requires the right temperature, humidity and wind.

Tourism source ↗

Suitability

Stroller: Not recommended

Nursing room: Not available

Noise level: quiet

Kids: Both routes contain steep sections; use hiking footwear and bring enough water.

Rules

Fire: no fire

Drones: permit required

Coordinates

35.5631, 136.7688

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Nearby places

Within 30 km, closest first.

Gifu

Oyada Shrine and Maple Valley

A shrine valley protected as a National Natural Monument, where thousands of maple trees frame carved shrine architecture. The strongest colour is normally from mid- to late November, with seasonal parking arrangements during the peak.

9 km away
Gifu

Mino Washi Museum

A museum dedicated to Mino washi’s long history, materials and production techniques. Exhibits explain how the paper is made, and scheduled hands-on papermaking gives visitors a practical introduction to the UNESCO-recognized craft tradition.

10 km away
Gifu

Warabee Land

An artist-run guesthouse and papermaking studio in Mino’s Warabi district. Rooms and furnishings use creative washi surfaces, while workshops introduce traditional sheet-making and decoration with natural materials. Contact the property before making the rural detour.

11 km away
Gifu

Mino Washi Akari Art Gallery

A compact gallery displaying prize-winning light sculptures made from Mino washi. The soft illuminated works provide an indoor stop in the Udatsu district, with a shop and rest area below; check Tuesday and holiday closures.

13 km away
Gifu

Udatsu Wall Historical District

Mino’s preserved merchant quarter is lined with Edo- and Meiji-era homes featuring udatsu fire walls, once both fire protection and a symbol of prosperity created by the washi trade. Combine the streets with the Former Imai Residence and nearby washi museums.

13 km away
Gifu

Former Imai Residence

The former home of a prominent Mino merchant and village headman preserves traditional rooms, storehouses, a courtyard and exhibits about the town’s washi prosperity and festivals. It sits within the Udatsu Wall Historical District.

13 km away
Gifu

Gifu Castle and Mt Kinka Panorama

Gifu Castle stands on Mt Kinka above Gifu City, with panoramic views across the Nagara River and Nobi Plain. The castle keep itself is closed for major work from mid-May 2026 until October 2027, while the ropeway, summit restaurant and squirrel village remain open subject to their own schedules.

14 km away
Gifu

Itadori Campsite

A seasonal campsite beside the exceptionally clear Itadori River in Seki. Visitors can camp, use bungalows, enjoy supervised river play and forest time, and use the camp facilities from late spring through early autumn. Buy food and fuel before entering the remote valley and confirm river conditions before swimming.

16 km away
Sources, photo credits and verification

Place information: Official tourism source · Reviewed 2026-09-26