THE CAIRNS INSTITUTE | James Cook University | Edited extracts
You can download here the 35 page publication, The Nakanai Mountain Ranges of East New Britain, Papua New Guinea, by Jennifer Gabriel (Editor) et al, from which this extract is taken
CAIRNS - The Nakanai caves are part of a globally unique system of limestone caves. They are located within the Nakanai Range of East New Britain, amongst primary rainforest extending from the mountain summits to the southern coastline.
The Nakanai region comprises a limestone mountain range with an area covering approximately 4,000 square kilometres and cavers rely on aerial images to look for deep caverns to explore.
In the images, large surface sinkholes, characteristic of the rainforest-covered karst landscape, look like enormous black holes of varying sizes. Once identified, professional cavers venture into the depths of giant caves.