The One to the Castle - Windsor Trail Half Marathon

The One to the Castle is a point-to-point riverside trail half marathon from Marlow to Windsor, following the River Thames and finishing near Windsor Castle.

The One to the Castle – Windsor Trail Half Marathon is a scenic point-to-point trail half marathon that follows the River Thames from Marlow to Windsor. The route is designed to highlight riverside views and provides a memorable finish at Windsor.

Date: Sun, 21 June 2026
Start time: 9:30 AM
Location: Riverwoods Drive, Marlow SL7 1QU, United Kingdom

Distance: Half Marathon (13.1 miles)

Price: £35