Region Guide

Hakone Travel Directory

Hakone is a mountain and lakeside resort region in Kanagawa Prefecture, part of Fuji-Hakone-Izu National Park, known for its hot springs, Lake Ashi, the volcanic Owakudani valley, and views of Mount Fuji — commonly visited as a day trip from Tokyo.

Travel Guides

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Places to Visit

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Verified: Aug 2026 3 min read

Owakudani Volcanic Valley & the Famous Black Eggs

Cross-checked from two independent travel vlogs: what actually turns Owakudani's eggs black, whether the 'seven extra years of life' claim is meant literally, and what the valley's 3,000-year-old volcanic history actually looks like up close.

By Yocker Editorial TeamOpen Guide