You don't need much for a discovery tour: A bike. A helmet. And a destination far off the beaten track - in our case, the Dutjer Alp...

No fence. No road. No house. Just a singletrack trail in the middle of untouched nature. Episode 07 of Trail Tales takes us through one of the last pieces of wilderness and on a tour of epic length.

The highest postbus stop in Switzerland. A three-thousand-meter peak steeped in history. And at the very end, the smallest whisky bar in the world - the tour to Piz Umbrail is one of superlatives.

A remote alp, a pathless entrance and a long-abandoned path through a lonely gorge: Alp Era is reluctant to reveal its treasures. But we set off to uncover the trail secrets of the Albula Valley...