ナショナルジオグラフィックのインスタグラム(natgeo) - 9月25日 16時30分

Photo by @shonephoto (Robbie Shone) - This is the view looking north, from inside a perfectly arched entrance of the U-Shaped cave in Grottedalen (NE Greenland), where we recently explored and collected samples to create the first record of climate change from caves in Greenland. This was the largest of 25 caves we discovered in a world of 24-hour daylight. The @negreenland_caves Project was supported by the National Geographic Committee for Research and Exploration.

[BIHAKUEN]UVシールド(UVShield)

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