Running Wild 2026, Brentwood
Join us in the forest for a 5K like no other as you take on obstacles, water and mud. Suitable for all abilities and open to ages 13+, this is the ultimate challenge to take on with friends, family, colleagues, teammates – or come along and meet new people!
When: From 10am, Saturday 11 July 2026
Where: Wild Forest, Parsonage Farm, Ongar Road, Brentwood, Essex CM15 0LA
What: A 5K packed full of obstacles, water, climbing, sliding – and lots of mud! Held at the award-winning Nuclear Races site, this muddy obstacle course finishes with the famous 20-foot Deathslide into a lake!
Registration fee: £40
Fundraising pledge: £100
Participants will receive:
- A place in Running Wild 2026
- A Running Wild medal
- Free post-race hot drink
- Free onsite parking
- A post-race shower
- A digital fundraising guide
By fundraising for Essex Wildlife Trust, you will be helping to create a brighter, wilder future for wildlife and wild places in Essex.
Please read the Event terms & conditions and Frequently asked questions before registering.
