The Jungfrau Marathon is one of the best known mountain marathons in the world, in full view of the famous Eiger , Mönch , and Jungfrau mountains in the Bernese Oberland area of the Swiss Alps .

The first Jungfrau Marathon was held in 1993. Approximately 3,500 runners from 35 different nations participate. The Jungfrau Marathon takes place each year in September.

The 2007 edition of the competition incorporated the World Long Distance Mountain Running Challenge and attracted 4200 participants from 50 countries.

The 42.195-kilometre (26.219 mi) course starts in Interlaken and climbs 6,407 feet (1,953 m) in elevation to the finish at the Eigergletscher.