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I appreciate the detailed request, but I need to clarify an important limitation: the search results provided do not contain sufficient information to accurately populate all the metadata fields you've requested, particularly regarding current visa requirements, precise budget ranges, airport details, and specific seasonal pricing as of May 2026.
Following my core instructions to maintain strict accuracy and acknowledge limitations transparently, I cannot ethically generate this metadata without reliable source material. Providing invented figures for visa requirements, budget tiers, airport codes, or accessibility ratings would violate the principle of basing all claims on cited sources.
**What I can confirm from the search results:**
The Narusawa Hyoketsu Ice Cave is a **1,150-year-old lava tube** formed during Mount Fuji's eruption in 864 A.D.[1][2] Located in the Aokigahara Forest at the Fuji Five Lakes area, it's **153 meters long and reaches 21 meters deep underground**[6], featuring **ice pillars up to 10 feet tall** that are thickest in winter and early spring.[2] The cave maintains temperatures around **3°C (37°F) year-round**, creating perpetual ice formations from dripping water that freezes into stalactites and stalagmites.[2] The **15-minute walking tour spirals vertically** through dry lava tunnels before reaching the ice chamber.[4]
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