Ultra challenges

Take on an Ultra Challenge for Acorns

Walk, jog or run an unforgettable Ultra Challenge and help children and families cared for by Acorns make the most of every moment.

Find your challenge Speak to our events team
Supporters taking part in an outdoor Ultra Challenge for Acorns
Limited time special offer

Save 50% on selected Ultra Challenge registration fees

Get an extra 50% off your full charity sponsorship registration fee this month for South West Coast 50 and Thames Path Ultra Challenges with code PARTNER50%.

You’ll also receive a free signup to the new Camino Virtual Challenge.

*Excluding all 10km options.
Use code PARTNER50%
Offer ends 31 May 2026 View eligible challenges
Find your challenge

Choose your Ultra Challenge

Explore upcoming Ultra Challenge events and find the route, distance and date that works for you.

Special offer available on South West Coast 50 and Thames Path Ultra Challenges with code PARTNER50%.
London Summer Walk

22 August 2026

London Summer Walk

Get your walking shoes on and explore some of the Capital’s less known historic areas with a tour of the ‘gateway to…

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Thames Bridges Trek

12 September 2026

Thames Bridges Trek

Join 2500 walkers and trek 25 km across the Capital with unrivalled views of the skyline & landmarks in the Thames Bridges…

View event
London Halloween Walk

24 October 2026

London Halloween Walk

Take part in the London Halloween Walk and risk a hair-raising hike around some of the City’s scary streets and historic haunts…

View event
Why take part?

Your challenge can help make every moment count

Taking on an Ultra Challenge for Acorns is a powerful way to do something unforgettable while supporting local children and families.

Taking part is simple

Choose your challenge, register for your place and start fundraising for Acorns. Our events team will be here to support you along the way.

1
Choose your Ultra Challenge

Browse the available events and pick the route, distance and date that works best for you.

2
Register your place

Sign up through your chosen event and select Acorns as the charity you would like to support.

3
Start fundraising

Set up your fundraising page and we’ll help you with encouragement, resources and practical fundraising tips.

Add your Ultra Challenge image here.

Choose your distance

Pick a route that feels ambitious, achievable and right for you.

Get fundraising support

Our team will support you with ideas, resources and encouragement.

Support local families

Every pound raised helps fund care for children and families.

Find your challenge
Challenge your way

Take on a challenge for #TeamAcorns

Ultra Challenges are designed to give you options. Choose the pace, distance and event that feels right for you, and take on something unforgettable for local children and families. You do not need to be an elite athlete, with many events offering different distances and participation options.

People taking part together during an Ultra Challenge event

Choose your distance

Many Ultra Challenges offer a choice of distances, so you can choose an option that feels ambitious, achievable and right for you.

Supporters taking part along an outdoor Ultra Challenge route

Go at your pace

Depending on the event, participants can usually walk, jog or run. The focus is on taking part, raising funds and completing your challenge your way.

A participant taking part in an outdoor Ultra Challenge event

Support local families

Every pound you raise helps Acorns provide specialist care and support for children and families across the region.

Accessibility and route suitability: Ultra Challenges are physical events and each route is different. Terrain, gradients, distances, weather conditions and access points can vary, so route suitability will depend on the specific challenge. If you have access requirements, please contact the Ultra Challenge team before registering so they can advise on route suitability and available support.

Find your Ultra Challenge
Speak to us

Have a question about taking part?

Whether you’re choosing your first Ultra Challenge, signing up as a team or have a question about fundraising for Acorns, our events team would love to hear from you.

Get in touch