In Bhutan, there are still huge tracks of inaccessible pristine forest in the mountains. These extremely shy primates live in large troops and are completely unused to the presence of humans. The treacherous nature of the road in this part of Bhutan almost guarantees no-one will come this way. I would say that the journey along this narrow road that precariously clings to the cliff-face that winds around the mountains, is probably the most anxiety-provoking thing I have ever experienced…….. but it was worth it! I had to keep my distance and be quick before they detected my presence.