📜 Lava tube in Aokigahara forest, designated a Natural Monument of Japan since 1929.
🔍 Formed by a Mt. Fuji eruption in 864, it features year-round ice formations.
❄️ See stunning natural ice pillars and icicles
🚶 Explore a 156-meter underground lava tunnel
🥶 Experience a naturally cold environment, refreshing in summer
🗺️ Easily accessible by sightseeing bus from Kawaguchiko
⚠️ Low ceilings (91cm) require crouching in parts
slippery steps, caution advised
🥶 Requires warm clothing even in summer due to near-freezing temperatures
Buy a bus pass at Kawaguchiko station for discounted entrance.
Consider a combined ticket with nearby Fugaku Wind Cave.
💰 Adults ¥350, Children ¥200. Group discounts available.
🕒 Open year-round; ice formations are largest in winter.
Last updated 2 days ago
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