The Grimsel area forms the eastern border of the World Heritage Site. From the Grimsel Hospice and the Grimsel Pass Road, a hiking trail runs trough a dynamic mire landscape to the Aare glaciers north of the Grimsel Lake. These are the headwaters of the Aare River.
The Eiger north face - with nearly 1650 meters - is one of the greatest north faces in the Alps. To this day it has no lost any of its mystique as "the wall of walls" for mountaineers.