Tough Mudder London South 15k 2025 - The Lily Foundation
The Lily Foundation logo featuring a butterfly, hearts and an 'x' for a kiss

Fighting mito,
finding hope.

Four Lily Fundraisers, laughing, covered in mud at a Tough Mudder event Four Lily Fundraisers, laughing, covered in mud at a Tough Mudder event

Tough Mudder London South 15k 2025

Three men in Lily Foundation tops smiling at the end of a Tough Mudder events

Obstacle

Location: Holmbush Estate

Start date: 20 Sep 2025

End date: 21 Sep 2025

Sign-up fee / price: £85+

Ready to take on the ultimate mud challenge in South London? The Holmbush Estate offers a thrilling course packed with woodland trails, rolling terrain and seriously muddy obstacles!

With over 20 epic obstacles on the 15k route (or a 5k option if you prefer), you can tackle it solo and make new friends en route or sign up as a team to support each other every step of the way.

Get your tough on and join Team Lily in the fight against mitochondrial disease.

Sign up here