Race website https://www.aletsch-halbmarathon.ch
Distance 21.1 km
Elevation 800 m
Started in 1986, Aletsch is one of the older trail races in Switzerland, and takes places in the dramatic Jungfrau Aletsch-Bietschhorn UNESCO work heritage site. The route climbs over a thousand meters, with views of several 4,000 meter peaks, and the stunning Aletsch glacier below the course. Check out Thom Fresnau’s Run the Alps Blog post on the Aletsch Half Marathon. This race is part of the Valaisan Cup.