Ninoike Hutte (二ノ池ヒュッテ)

Ninoike Hutte is a high-altitude mountain hut located near Nino-ike (Second Crater Lake) on Mt. Ontake, one of Japan’s major volcanic mountains. Its role is very clear: it’s a summit-zone staging base—ideal for splitting a long Ontake ascent, catching sunrise above the cloud layer, and positioning yourself close to the crater-lake area for early starts.