Bewl Water Summer

Lamberhurst, United Kingdom • 13 Jun 2026

Trail Running at Bewl Water

The Bewl Water Summer event features a series of trail races held at the largest lake in South East England. Located near Lamberhurst, Kent, the routes traverse 1,000 acres of countryside within the Kent and Sussex border. Participants run through forested areas and open countryside, with the majority of the course offering views of the reservoir.

The event offers four distinct distances:

  • 50 km Ultra Marathon
  • 26.2 mile Marathon
  • 13.1 mile Half Marathon
  • 10 km Run

All routes are primarily off-road, utilizing a combination of undulating rural wooded trails and quiet country lanes. The courses follow a clockwise direction around the reservoir, starting and finishing at the main Bewl Water Visitor Centre. Specific loop configurations vary by distance; for example, the 50 km involves two 12.4-mile loops followed by a final shorter loop, while the 10 km is an out-and-back route with a marshalled turnaround point.

The event provides professional chip timing, and provisional results are uploaded after the race. The course includes well-marked routes and stocked checkpoints maintained by marshals. Participants receive a bespoke race medal upon completion, and slate awards are presented to the top three male and female finishers in each category. Professional medical support and photography services are present on-site. The marathon distance has previously been recognized by Runners World as a top UK marathon. Visit the organization's website for the most recent information.

Race information

50 km
Bewl Water Ultra Marathon
26 mi
Bewl Water Marathon
13 mi
Bewl Water Half Marathon
10 km
Bewl Water 10km
Visit the organization's website for the most recent information.
Trail runs nearby

Experience a unique 42km journey starting in the woodland trails of Stanmer Park and the South Downs before joining the road for a grand seaside finish at Hove Lawns.

A scenic trail half marathon in Seaford on 19 April 2026 that links the seafront with the South Downs and features undulating terrain and climbs. Surplus funds support local charities and entrants receive a medal, water stations and finish..

Timed lap event at Buchan Country Park on 19 April 2026 with 5.3 km laps to create distances from 5 km up to ultra within a 7 hour limit. Runners may choose one of twelve medals or a lower cost no medal entry.

A 15 mile trail run from the beer garden of the Ye Olde Smugglers Inne in Alfriston with two pub checkpoints offering a drink and snack; route GPX and a race narrative are provided and results appear within 24 hours.

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