The water pipes, water channels, or Suonen, in French "bisses", cross the country like blood vessels a human body - today still for a length of almost 2000 kilometres. Most of them were constructed 900 to 1000 years ago. Whether copied from North Africa, as some say, or self-invented: necessity is the mother of invention - especially when it comes to compensate the lack of rain. Water is abundant in the glacier area of the Valais, unfortunately for people in the wrong places: almost inaccessible in the deeply carved river gorges. The Suonen make this water usable to people. And as dream paths they open up the unique Valais natural and cultural landscapes.