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 16時00分

Photo by @shonephoto (Robbie Shone) // Assisted by local Tunisian cave explorers, we negotiate the mined tunnels and shafts that lead through the Grotte de le Mine. The mine was in operation between 1920-1925 to extract lead and zinc ore and here we see one of the team ascending a rope in one of the mined shafts. We're following the work of a group of scientists from the Tunisian Geological Survey and European Research Institutions (UK, Germany, Austria and SISKA in Switzerland) who are looking at changes in rainfall patterns through time. Several of their field sites lie inside Djebel Serdj, which hosts some of the largest caves in Tunisia.

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