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Sima de las Puertas de Illamina (BU56)

Sima de las Puertas de Illamina (BU56) Saturday, 23 August 2008 – Saturday, 13 September 2008 Recently I was very lucky to join a YSS expedition to the Sima de las Puertas de Illamina (BU56), which at a depth of just over 1,400 m is one of the deepest caves in the world. The cave […]