ナショナルジオグラフィックのインスタグラム(natgeo) - 1月1日 13時00分

Photo by Robbie Shone @shonephoto | In full sunlight, the entrance portal of Shulgan-Tash (Kapova) cave can be spectacular. Here, geologist Yuri Dublyansky admires the Blue Lake, and the cathedral like shapes reflecting on the water. Cave divers have explored this lake to a depth of 88m below the surface. Shulgan-Tash (Kapova) cave lies in the Republic of Bashkortostan in the Ural Mountains, Russia and is home to a collection of very old cave art.

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