Reino Unido·2026

Watford

Watford sits on the River Colne just north-west of London, with flat town running around the canal towpath and Cassiobury Park, though serious runners head to the rolling Chilterns within 10km for trail work and elevation. The cycling community is strong here—the Westerley Cycling Club Wednesday Series runs local road races, and the Tour de Ricky 200km event draws riders into the Hertfordshire and Buckinghamshire hills, with typical climbs of 100–200m around lanes near Ashridge and the Chiltern ridge. Duathlon options like Nettleden and Dorney Lake events sit within 20km, mixing running and cycling across varied terrain.