Take part in the world's largest obstacle race
5km (20+ obstacles) or 10km (35+ obstacles) course of mud runs, obstacles and survival challenges
London's best and only music filled 10km
A 5km fun run of obstacles and the undead!
Mudnificent 7 is the most unique obstacle race in the world
A half marathon through the borough of Hackney
Participate in the happiest running event on the Planet.
A unique and exciting overnight 100km cycle challenge around London in June
Join Team Trees today to take part in the Bupa London 10,000!
Mercy 4 Mankind 10K Charity Challenge. Run or walk the course and raise money for Trees for Cities!
Be part of this fantastic challenge and raise money for Trees for Cities
Take a look at some of our exciting overseas charity challenges
Unique challenge events around the UK, walk, run or bike.
Take part in our exciting Christmas fundraising event Freeze for Trees
Hear from our supporters. Find out why they chose to fundraise for Trees for Cities and what they did to achieve their targets