Grottes et karsts de Chine
Sur les traces de Xu Xiake

Hong Meigui Zhongdian Draughting Holes 2006

was a three week cave exploration expedition, following on from several previous Hong Meigui expeditions to the same area. The primary aim of the 2006 expedition was to locate entrances to high-altitude caves of significant depth by spotting melted gaps in light snow cover caused by warm cave air. In the event, there was not enough snow to pursue this strategy. The expedition logged 26 new minor cave entrances.