NATIONAL GEOGRAPHIC HD

Survival instructor Hazen Audel seeks out a village hidden deep in the jungles of the Mekong Basin.

In one of the world's largest religious congregations, the Kumbh Mela, pilgrims attend the festival with the sole intention of washing off their sins in the holy waters of Ganga.

Specialised teams in India save twin leopard cubs that have fallen down a well, rescue a python and release a leopard back into the wild.

Hazen Audel goes on a deadly solo run into the deepest canyon in North America.