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Oishi Kogen

Oishi Kogensusukipampas grassKiminoautumn
Oishi Kogen — location in Wakayama, Kimino

Wakayama · Kimino

34.1186°N, 135.3189°E

Oishi Kogen is a plateau at about 870 metres straddling Kimino and Aridagawa, and what grows on it is susuki — Japanese pampas grass, over a wide open ridge with no trees. From early October to mid November it turns, and the whole plateau moves: silver in flat light, and in the low sun of morning and evening a solid sheet of gold.

It is generally called the best susuki field in the Kansai region and it is a prefectural natural park. The ridge is walkable end to end, there is a viewpoint rock called Hiage-iwa that most of the photographs are taken from, and on clear days you can see the Kii channel and across to Shikoku. Parking is free, there is a mountain lodge at the top, and outside the autumn window there is essentially nobody there.

Essential Information

Opening Hours

Open access | Seasonal second car park 9:30 AM – 4:30 PM

Closed: Open year-round | Roads may ice in winter

Entrance Fee

Free | Free parking

Best Season

Early October–mid November for the susuki, at sunrise or sunset

Visit Duration

1.5–2 hours

Getting There

Access Information

Nakatan, Kimino, Kaiso District, on the ridge between Kimino and Aridagawa. Car recommended — from Kainan-Higashi IC on the Hanwa Expressway take Route 370 east then Prefectural Route 180. Free to visit. Free parking including a summit car park and a second lot open 9:30 AM – 4:30 PM during the susuki season. A bus runs from JR Kainan Station to the trailhead. Winter roads may ice — winter tyres or chains are advised from the Kimino side.

Insider Guide

Premium
**Early October to mid November.** Silver in October, gold in November when low sun catches it. Outside that window it is a grassy ridge. **Morning or evening.** The gold only happens at a low sun angle. Midday flattens the whole plateau. **Find Hiage-iwa.** The rock outcrop on the ridge is where the photographs are taken from and it is a short walk from the summit car park. **The second car park is seasonal.** Open 9:30 AM to 4:30 PM only during the susuki season. At peak weekends both fill. **Winter tyres from the Kimino side.** The approach road ices, and the town publishes warnings about it.

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