• Discover 10 of London’s hidden peaks
  • Marathon distance walking challenge
  • Completely unique event
  • 42km walk on the popular ‘London Loop’ footpath

The trek will take you through beautiful woodland, thriving nature reserves and quieter spaces. Enjoy the unexpected views and chance encounters with local wildlife, such as green woodpeckers and muntjac deer. But keep one eye on those miles still to go...and that well-deserved pint at the end!

With a challenging 42km to conquer, this demanding trek will leave you with an immense sense of achievement knowing you have made a real difference to supporting CLEFT.


Arrive at the start for registration and a full safety briefing to prepare you for the day ahead. You’ll get to meet your team mates and walking leaders who will look after you during the challenge. 

A cheer across the start line and an easy start through the woods will soon see you ticking off the first of the ten ‘peaks’. Be prepared for some very alternative summits! 

The summits include:

  1. White Hill (100m)
  2. Pinner Hill (130m)
  3. Harrow Weald Common (131m)
  4. Stanmore Hill (151m)
  5. Deacons Hill (135m)
  6. Furze Hill (135m)
  7. Mill Hill (111m)
  8. Mount Moat (145m)
  9. Arkley (147m)
  10. Bournwell Hill (129m)

You’ll follow a variation on the well trodden London Loop (with those all important ‘peaks’) across a variety of terrain from leaf-strewn woodland footpaths to pavements and well walked gravel paths through nature reserves. Highlights include the stunning view from the top of Harrow Weald Common and a walk along the side of Aldenham Reservoir. 

As the undulating route nears Monken Hadley you’ll bag your last ‘peak’ of the day before rolling downhill to be cheered across the finish line and indulge in team celebrations at a pub in Cockfosters.