ナショナルジオグラフィックのインスタグラム(natgeo) - 5月13日 09時05分

Photo by Robbie Shone @shonephoto | Explorers emerge from a giant black hole with a notebook full of survey data from previously unexplored galleries. In the entrance of San Wang Dong cave, in China, this passage is called the Sea of Tranquility. Here lies the remains of old nitrate mining that covers the floor in the form of hearths, pits, and unwanted spoil.

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する