This 20km route tracks the entire length of the reservoir from the Klaus Dam to Kniewas passing by Elisabethsee. Unlike a flat lake circuit, this route is a relentless sequence of short, punchy climbs and descents, demanding high concentration and agile footwork. Typically clocked from the northern end of the Klaus Dam (Staumauer). The path consists of narrow single trails around the Klauser Stausee.

This route is designed to mimic the creation of Stonehenge. From the Blue Stones in the Preseli hills to the Sarcen stone in West Wood to Stonehenge itself.. The start point of the Waun Mawn standing stones isn't signed but very obvious when you see it. It takes in costal - mountain - rolling countryside and woodland. It incorporates, Waun Mawn, Avebury as well as Stonehenge which are internationally siginficant stone circles, all part of ancient British history and (apart from Waun Mawn) English Heritage sites.