From Brugg station, the route runs through the middle of the old town to the Aare. The village of Altenburg near the hiking trail was once the site of the oldest residence of the counts of Habsburg. At first following the Aare, the trail switches to the Reuss on the opposite side. After about an hour, it reaches the large railway bridge and Switzerland’s «water reservoir», where the Aare, Reuss and Limmat rivers converge. Measuring 288 kilometres, the Aare is the longest river that flows entirely in Switzerland.

After about half an hour alongside roads and industrial sites, the path branches off, zigzagging its way into the silent, pristine forest and up to the «Horn». It follows beautiful forest trails past many large fire pits to Baldegg and then down to Baden via the Stein castle ruin. Baldegg is a popular excursion destination for residents of Baden and the neighbouring communities.

Baden’s history goes back to the 1st century, when the Romans made use of the thermal springs in what was then known as Aquae Helveticae. The small town has Switzerland’s most mineral-rich thermal spring water. From here, the trail continues to the Teufelskeller forest reserve where there are quite a few fire pits. Timber has not been used here since 1999 in an effort to create a refuge for plants and wildlife. The path leading to the pretty old town of Mellingen is characterised by this strange, romantic landscape with its gigantic rock formations and secluded forest sections.