My video tribute to the remote and dense jungles of Borneo.

I was in the Sabah province, in the far north of Borneo, heading from the Kinabatangan river valley to my next destination, the Danum Reservation. After unforgettable encounters with elephants and orangutans, the time had come for a completely different experience: a descent into the bowels of the earth, into the famous Gomantong Cave. In the darkness of that cave,…