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Fumaroles of Mt. Hakone volcanic activity emitting white smoke.
After changing from the cable car to the ropeway at Hayamiyama Station on the main route of the Hakone tour, While enjoying an aerial walk for a while the scenery suddenly changes. The lush greenery disappears, and white plumes of smoke billow out from the crumbling, bare rock. This is Owakudani, an explosive crater created by the most recent volcanic activity in Hakone. The white gas spewed from the fumaroles all year round contains sulfur and has a distinctive smell.
If you get off at Owakudani Station on the ropeway, you can observe the fumes up close. The yellowish color of the rock surface is due to the crystallization of sulfur. Where the hot spring water gushes out, the famous "black eggs" are made. When soaked in acidic water at high temperatures, it becomes a boiled egg with a black shell. It is said that if you eat one, your life will be extended by seven years. There are several stores in the valley where you can buy them.
In the southeastern part of the area, called Jigokusawa, there is a stone chamber piled up with sulfur pores, where water is poured into the chamber and the hot spring water is supplied to Sengokuhara and Gora.
White smoke billows from the mountainside. Photo courtesy of Tourism Division, Planning and Tourism Department, Hakone Town
Take the boardwalk to get close to the fumaroles. Photo courtesy of Tourism Division, Planning and Tourism Department, Hakone Town
A hot spring is created and supplied in a stone chamber with sulfur pores. Photo courtesy of Tourism Division, Planning and Tourism Department, Hakone Town
The famous black eggs can be bought at several stores. Photo courtesy of Tourism Division, Planning and Tourism Department, Hakone Town
Steaming area for making black eggs. Photo courtesy of Tourism Division, Planning and Tourism Department, Hakone Town
遊客可以在大涌谷品嚐到當地特有的黑蛋（黑たまご），這些蛋在含硫的熱泉中煮熟，傳說吃一個能延壽七年。此外，從大涌谷的觀景台上，遊客還能欣賞到壯觀的富士山景觀以及箱根的自然美景。
在大涌谷地區，可以品嚐許多以地熱煮製的美食，如黑蛋（在地熱溫泉中煮製的雞蛋）、地熱煮麵等。這些美食具有特殊的口感和風味，是旅程中的一大特色。
坐纜車上來遠遠就聞到硫磺味，用蒸氣蒸煮的黑蛋也很好吃。
䌫車一路上來景觀不同，這裡光禿禿一片也散發著濃濃硫磺味，黑色溫泉蛋是這裡特色名產，來訪遊客都會買來品嚐。
大涌谷的黑色長壽蛋是一大特色，一定要吃口體驗看看。
