Welwyn
Trail Running Calendar near Welwyn 2026-2027
Explore the top trail runs near Welwyn for 2026-2027! We've gathered 141 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2027
Fireworks-themed marathon and half marathon on a lapped lakeside course at Caldecotte Lake with basic support and a finisher's medal.
Point to point Half Marathon along the Grand Union Canal from Cowley to Cassiobury Park, Watford, on towpaths, trails and woodland. Entry from £35.