The race makes you tour the whole of the lakeland fells, with about 6,300 m of elevation gain, on public footpaths and bridleways.
It starts in Coniston, visits Dunnerdale fells, Eskdale, Wasdale and Buttermere before getting to Keswick. It then goes to Matterdale, Haweswater, Kentmere, Ambleside and Elterwater before getting back to Coniston.
The race requires excellent navigation skills. It can also be run in teams of 3 runners that have to remain together during the whole race.