Shinzan Shrine
Akita · Oga
39.9428°N, 139.8494°E
Shinzan Shrine (真山神社) in Oga Peninsula is the spiritual home of the Namahage tradition, where ritual demon costumes are blessed annually during the Namahage Sedo Festival on the second Friday-Sunday of February. The festival is a Shinto purification rite where men dressed as Namahage descend the mountainside carrying torches, roaring and stamping to drive away evil spirits. At the shrine, Namahage perform exorcism dances (taiko-accompanied) while priests chant prayers. The event is both solemn religious ritual and visceral performance — firelight, snow, drumming, and roaring demons create primal atmosphere.
The shrine itself is modest — a wooden structure nestled in cedar forest on Mt. Shinzan's slope. During non-festival periods, the shrine is quiet and meditative, with a small museum displaying historical Namahage masks and costumes. The climb to the shrine passes moss-covered stone lanterns and towering trees, evoking Shinto's connection to nature. Visiting Shinzan provides cultural context for Namahage beyond the tourism-focused museum demonstrations.
Essential Information
Opening Hours
Shrine grounds 24/7. Museum 9:00 AM – 4:00 PM. Sedo Festival: second Fri–Sun of February, 6:00 PM – 8:30 PM.
Closed: Shrine open year-round. Museum may have occasional closures. Festival: February only.
Entrance Fee
Shrine grounds free. Museum ¥100. Festival free (food stalls extra).
Best Season
Second weekend of February for Namahage Sedo Festival with torchlit procession; autumn for forest foliage
Visit Duration
1–1.5 hours for shrine, museum, and forest walk; 3 hours for festival evening
Getting There
Access Information
Insider Guide
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