That was our first break after a couple of hours of scrambling on slippery terrain.
Photo taken in the Clearwater cave system in Gunung Mulu National Park (Borneo)
The Clearwater System is believed to be the largest interconnected cave system in the world by volume and the 9th longest cave in the world at 189 Km (as of 2011).
For more photos, information and cave map, view my Clearwater cave photo series.