A 56 mile circular ultramarathon following the full Nidderdale Way through the Yorkshire Dales. The route traverses moorland ridges, valley paths and rural tracks with significant cumulative ascent spread across continuous undulation. Terrain varies from firm stone paths to rougher moorland trail, with exposure on higher sections. The course is marked with checkpoints and aid stations positioned at intervals around the loop.

• Other races at the same event:
Nidderdale Way 50K Ultra Marathon