OMG: Gigantic sinkhole with an ancient forest inside found in China – Gulf Digital News OMG: Gigantic sinkhole with an ancient forest inside found in China – Gulf Digital News A team of explorers in China have discovered a gigantic sinkhole that has a stunning ancient forest at the bottom. The sinkhole is 192 metres deep, 304 metres long and 150 metres wide. It is one of 30 known sinkholes located in Leye County of the South China's Guangxi Zhuang Autonomous Region. The trees are as tall as 131ft and there is a possibility of discovering new species’, according to...