Cousin Jack

Saint Just, United Kingdom • 7 Mar 2026

Cousin Jack features two coastal trail races organized by Bys Vyken Events. The Classic Jack is an 18-mile point-to-point challenge from St Just miners chapel to St Ives, Cornwall, along the rugged south-west coast path. The Ultra Jack doubles the scale to 35 miles, starting in St Ives and heading out toward Cape Cornwall before returning, with more than 7,000 feet of elevation. The events are described as Cornwall’s toughest coastal routes, mixing mud, rocky headlands, steep climbs and endless bogs with dramatic sea views. They offer a demanding, multi-terrain experience that showcases the coast path’s harsh, award‑winning beauty. Visit the organization's website for the most recent information.

Race information

35 mi
Ultra Jack
18 mi
Classic Jack
Visit the organization's website for the most recent information.
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