Nav4 Tour de Helvellyn

The NAV4 Tour de Helvellyn is a challenging winter ultra marathon held annually on the Saturday before Christmas, with the 2025 event marking its 16th edition. Covering approximately 38 miles around Helvellyn in the Lake District, the route features rugged mountain trails, bridleways, and significant elevation gains of nearly 600 meters. Participants must be experienced in mountain navigation and winter hill running, as the route is unmarked and conditions can be severe.

The event emphasizes self-reliance, with minimal support and strict equipment requirements. Starting and finishing at Askham Community Centre, runners navigate via grid references, with safety tracking provided. It’s a demanding race suited only for seasoned mountain runners. Visit the organization's website for the most recent information.