ナショナルジオグラフィックのインスタグラム(natgeo) - 12月21日 22時32分

Photo by @shonephoto (Robbie Shone) - Following a long and tiring but thoroughly productive descent of El Cenote (cave) in the Italian Dolomites, it sure feels good to reach the surface again and the warmth of base camp. Over two days and nights, our four small teams have helped survey, using a high precision 3D laser scanner one of Europe's largest underground chambers.

[BIHAKUEN]UVシールド(UVShield)

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