Mt Arashima

Mt Arashima (Japanese: 荒島岳) rises steeply above the Ōno Basin, a solitary hyakumeizan* peak whose presence has shaped both the landscape and the identity of this corner of Fukui for centuries. Though not especially high, it stands apart from the surrounding mountains, a remnant of an ancient caldera volcano whose long erosion has left behind a bold, independent summit. From the moment you begin climbing through its beech forests, the mountain’s character becomes clear with steep slopes, deep valleys carved by old volcanic forces and a rugged ridge line.

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For generations, Mt. Arashima has been known as Ōno Fuji, a sacred mountain crowned by Arashima Shrine at its summit. The hike itself is demanding but straightforward. Whether you ascend via the Katsuhara route or the quieter Nakande course, the mountain rises sharply from the basin, making the climb feel substantial despite its modest height - although it should be said that it is the highest point in Fukui prefecture. The trail passes through  woodland, over rocky steps, and across flower‑filled clearings like Shakunage‑daira before reaching the grassy dome of the summit. From there, the views open in every direction. You can see Ontake (御岳山) rising massively to the east, the Hakusan range (白山) nearby, and the Ōno Basin spread out far below. I climbed in May when there was still considerable snow.

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Mt Arashima is not as well known as other hyakumeizan, but it dominates the area; volcanic in origin, steep in form and deeply rooted in the cultural history of Fukui. 

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* 100 famous mountains of Japan

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(All information here is based on personal observations and experiences. Check official sources before planning or starting any hikes.)