The Jungfraujoch offers visitors a high-Alpine world of ice, snow and rock, which can be marvelled at from vantage terraces, the Aletsch Glacier or in the Ice Palace. The construction of the cog railway to the Jungfraujoch at the end of the 19th century was one of the pioneering feats of worldwide railway construction.
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.