Going underground: British explorers map out ‘never-ending’ cave network underneath Borneo jungle
These incredible images show British scientists on an expedition to map a ‘never-ending’ cave network in a project that dates back more than 30 years.
The twisting network of caverns underneath Gunung Mulu National Park, in Sarawak, Borneo, contains the largest cave chamber in the world, the largest cave by volume and what is believed to be the largest cave passage.
Scientists carry out bi-annual visits into several caves and have so far mapped out an incredible 186 miles of the underground network.
Making a splash: Expedition leader Tim Allen inspects the ‘Shower Head’ – a calcium-formed funnel which transports rain water from the surface into caves underneath Gunung Mulu National Park, in Sarawak, Borneo
Using lasers and other equipment they measured the dimensions of different sections of the numerous caverns stretching throughout the UNESCO World Heritage site and feed them into a computer to build up the map.
Working with Borneo’s National Parks authority, the team of Brits also began mapping the area above the caves to help tourists trekking between the cave mouths know where they are.
Sarawak Chamber is the world’s largest, the Clearwater Cave system is the largest by volume and Deer Cave is believed to be the biggest passage.
More than 30 years ago the Royal Geographical Society (RGS) led the first expedition to the cave system, which current team member Andy Eavis, 62, was part of.
Other members of the team – all British – included leader Tim Allen, 49, Dr Gina Moseley, 26, web designer Hugh St Lawrence, professor Pete Smart and cavers Matt Kirby and Robbie Shone.
The expedition saw the team camping for periods below surface during a three-week trip in May.
Leaving a mark: Andy Eavis compares his hand size to ancient prints left in Black Hands Cave

Hai everybody,
I am Nithin Shetty from Mangalore Karnataka India. is there any explorer interested in taking a challenge of exploring an unexplored cave in Mangalore which is very famous but undiscovered.If interested please mail me for detail at
nittinshetty0824@rediffmail.com.