ナショナルジオグラフィックのインスタグラム(natgeo) - 11月14日 18時01分

Photo by @shonephoto (Robbie Shone) - Two explorers return to the surface by ascending ropes out of a large moulin on the Gorner glacier, Switzerland. As morning temperatures rise, the risk of a sudden flood of meltwater puts an end to exploration inside this particular cave. However, the team will return.

[BIHAKUEN]UVシールド(UVShield)

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