Nachi Waterfall and primeval forest, Japan

ippei + janine has added a photo to the pool:

Nachi Waterfall, Kumano Kodo, Wakayama, Japan

The Kumano Kodō is a series of ancient pilgrimage routes that crisscross the Taiheiyo Rainforest on the Kii Hantō, the largest Peninsula of Japan. These sacred trails were and are still used for the pilgrimage to the sacred sites.
In 2004, the Kumano Kodo pilgrimage routes were registered as UNESCO World Heritage as part of the "Sacred Sites and Pilgrimage Routes in the Kii Mountain Range" property.