Volume 2023, Issue 3
  • E-ISSN: 22202293


In 2016, in Baise Leye County of Guangxi Zhuang Autonomous Region of China, my team and I rappelled down with a rope to the bottom of the Dashiwei Tiankeng, 600 metres under the ground. The term tiankeng, “heavenly pit”, refers to large sink-like negative terrains with steep walls, formed over millions of years and developed in carbonate rock strata.

Countries: China

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