ナショナルジオグラフィックのインスタグラム(natgeo) - 7月15日 21時26分

Photo by @shonephoto (Robbie Shone) An explorer ascends an 80 meter (250 ft) deep vertical shaft, from the base of the Gorner glacier in Switzerland. Like a funnel, this shaft narrowed the deeper into the ice it went, so much so that at the bottom its width was only body-size.

[BIHAKUEN]UVシールド(UVShield)

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