Travel the entire length of the Sky, the world’s highest major river, as it flows from the Himalayan mountains down to the Indian Ocean, passing Asia’s biodiversity hotspots and affecting more than a billion people along the way.
Score: 6.7
Score: 7.7
Score: 7.8
Score: 5.5
Score: 8.4
Score: 7.0
Score: 7.2
Score: 7.5
