The One by the Canal

Cowley, United Kingdom • 9 Nov 2025

The One by the Canal is a scenic Half Marathon trail race running from Cowley Rec, Cowley, along the Grand Union Canal to finish at Cassiobury Park, Watford. The course uses country paths and woodland trails, delivering nature-filled canal scenery. Key features include chip timing, a finisher medal, on-site refreshments, and four water stations about every 5k.

Practical details include bag drop, medical cover, and an option for a pre-race coach transfer from finish back to the start. Route maps are available online. Toilets are at the event village only; there are no toilets on the route. Visit the organization's website for the most recent information.

Race information

21 km
Half Marathon
Visit the organization's website for the most recent information.
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