The Big Marsden Trek

Join us on Sunday 13 September and trek 26.2 miles across stunning, open countryside, from Dorking to The Royal Marsden, in Sutton, to help save the lives of people with cancer.

Registration for this event has now closed 

  • Robert Sherriff just donated £20.00
  • Gaynor Balding just donated £10.00
  • Christine Lawino just donated £10.00
  • Natasha Coffey just donated £25.00
  • james hill just donated £10.00
  • Donia C just donated £10.00
  • William Grimster just donated £35.00
  • Natasha Coffey just donated £30.00
  • Meg just donated £20.00
  • Georgia duke just donated £10.00
  • Jade Hitchcock just donated £10.00
  • Charlotte Fry just donated £10.00
  • Pippa Goodall just donated £20.00
  • Adam just donated £10.00
  • Lauren, Harry & Ralph🤍 just donated £50.00
  • Alison Wright just donated £30.00
  • Khuncha Mahmood just donated £35.00
  • Simran Palmer just donated £5.00
  • Alex Avens just donated £20.00
  • Darlene Romero just donated £20.00

Countdown to the big day!

Taking part in The Big Marsden Trek?

What to bring


It is essential that you wear your breathable trekking t-shirt and display your walker number at all times.

Read more about what to bring on the day and review the kit list.

Plan your travel


The Big Marsden Trek start line is located at Milton Court Farm, Dorking, RH4 3LY

It is important that you arrive on time for the start time you’ve chosen so please aim to arrive 30 minutes before your start time.

About the route


The route is categorised as tough, with terrain that reflects the undulating landscape of the North Downs. 

We have three rest stops along the route where you’ll find toilets, water points and first aiders on hand.

851

Registrations

£257,580

Total Raised

8,210

Donors

Who's in the lead?

Individuals

Teams

The difference you're making

The Royal Marsden Cancer Charity raises money to help save the lives of people affected by cancer. With the vital funds raised by The Big Marsden Trek we are able to support our staff in providing the very best care and developing life changing treatments, which are used across the UK and around the world.

By taking part in The Big Marsden Trek you will help save the lives of cancer patients everywhere.  Find out more.

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.

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