Funatsu Lava Tree Molds

船津胎内樹型

4.2Est. 30Fujikawaguchiko, Chubu

UNESCO World Heritage Site

Overview

Sacred, tree-shaped lava tunnels used for spiritual rebirth rituals by Fuji pilgrims.

Created when a massive eruption enveloped an ancient forest, leaving hollow, tree-shaped caves in the hardened lava. Worshippers traditionally navigated these dark, narrow tunnels as a ritual rebirth before climbing Mount Fuji. It is a rare and striking geological phenomenon.

Local tips

The caves are incredibly tight and low; wear clothes you don't mind getting dirty, as you will likely have to crawl in some sections.

Practical info

Japanese name: 船津胎内樹型
Nearest station: Kawaguchiko Station (15 min bus)

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