About The Big Marsden Trek

Walk with us and help save the lives of cancer patients everywhere.

The Big Marsden Trek is The Royal Marsden Cancer Charity's brand new fundraising event. Join the team and trek 26.2 miles across the Surrey countryside on Sunday 13 September 2026.

Event details

Date: 13 September 2026

Distance: 26.2 miles

Ticket price: £25

Fundraising target: £350

Route: Milton Court Farm, Dorking to The Royal Marsden, Sutton

The difference you make

With your help The Royal Marsden can

Make breakthroughs happen

Together, we're funding life-saving cancer research that will help us diagnose cancer earlier and provide better, more personalised treatments.

Offer patients world-leading treatment and care

We fund initiatives that support patients' physical and mental wellbeing from the point of diagnosis, throughout treatment, and beyond. 

Find out more about The Royal Marsden Cancer Charity at royalmarsden.org

Our fantastic partnership with Banham

We are delighted to welcome leading security firm Banham as Headline Sponsor for the first Big Marsden Trek. This is an exciting new development in our partnership with Banham, who have been supporters of The Royal Marsden Cancer Charity since 2015.