The Teichalm Loop XXL circles the Breitenau Valley along the surrounding mountain ridges, connecting popular trail running destinations in the local scene, including Rote Wand and Rennfeld. The entire route follows hiking paths and impressive, sometimes technically demanding trails, forming a beautiful line around the valley.

Route passes highest natural elevation in Luxembourg (Kneiff 560 m), Belgium (Signal de Botrange 694 m) and Netherlands (Vaalserberg, 322.4 m).

It is an extension of the Vaals - Botrange route that is already a competitive route.

The route covers all of the east Belgium from the highest point Netherlands (at the border) to highest point of Luxemburg just beyond of the border. Very diverse landscape with forests, open heaths, farmland and many villages.