The round arch passage at the Hotel Post in Simplon village gives the "Entrée" to the big round. Right behind it, the route climbs over meadows to Lowigrabu. Half an hour higher the path crosses the Mälchgrabu and then it meanders between the rocky cliffs on the north-eastern flank of the Wenghorn up to the small Antonius wayside shrine high above the entrance to the Laggintal. The narrow path now runs crosswise into the valley. Above Schafalpe Färricha the white-red-white marked trail leads to Lagginbiwak SAC.
The descent begins as a leisurely high-level hike and leads us with a view of Lagginhorn, Weissmies and stony meadows in slight ups and downs to the innermost Laggin Valley. Here you cross several glacier streams, where the path bends: down to the left, partly steep and slippery, and in bends dodging the rocks. Below the Bidemji huts you enter the forest. After Laggii you walk out to the Simplon road and up to Simplon Dorf.