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London Winter Walk 2027

Step into 2027 by walking for Dementia UK past London’s greatest sights.

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Sign up Learn more

Kickstart the new year by soaking up London’s most iconic sights with this fantastic walking challenge.

The London Winter Walk is the best way to step into 2027, whether you challenge yourself with the full marathon distance across London, a scenic half marathon along the Thames Path, or the family-friendly 5km or 10km.

Take on the challenge at your pace as a team or on your own and raise vital funds and awareness to help families facing dementia. It’s your walk, your way!

All routes start and finish at the Oval Cricket Ground and take in both sides of the River Thames and many of the capital’s most eye-catching landmarks. There are rest stops along the route with snacks and drinks, and a finishers’ t-shirt, medal and hot food await you at the finish line – along with the pride that comes with doing something amazing for families living with dementia.

Join the UK’s number one series of treks and trail runs in 2027 and push yourself further with the first Ultra Challenge of the year.

Sign up to take part

Sign up to take part in this incredible Ultra challenge and support families facing dementia.

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The Ultra Challenge Series, run by Ultra Challenge, is the UK’s number one series of treks and trail runs. Dementia UK is a proud series partner of the Ultra Challenge Series.

Between January and October 2027, you can take on some of the UK’s most spectacular trails. With 24 events – from the dramatic cliffs of the Isle of Wight to the rugged Scottish Borders – there’s an Ultra Challenge for everyone.

Throughout each event weekend, challengers will take on distances from 10km up to 100km all at the same time, creating an unbeatable atmosphere and real sense of community spirit.

You can choose to walk, jog, or run your challenge, with unparalleled event support every step of the way. There are regular rest stops with food and drink, fully signposted routes, marshals on the course and walking with you, exceptional medical and welfare coverage including massage, hot meals and a huge finish line celebration. With the support of Ultra Challenge, you can achieve more than you ever expected.

When you take on an Ultra Challenge for Dementia UK, you’ll raise vital funds to ensure no one faces dementia alone. We’ll provide you with fundraising tips and support, and you’ll have access to an event app with all the information you need to get the most out of your Ultra Challenge.

Find your Ultra Challenge

Distance options vary according to each Ultra Challenge. Typical distances are 10km, 25km, 50km, 75km and 100km. The full 100km challenges can be undertaken all in one go or over two days.

Most challenges have options to walk, jog or run, although a handful are walking-only events. You can also run or walk competitively with the Trailblazerz and Ultra March options for select events.

There are two funding types to choose from, and costs vary according to your route/distance:

  • Charity fundraising: pay a small registration fee and raise a minimum amount for Dementia UK, and we’ll cover the cost of your place. 50% of your minimum fundraising pledge must be raised and received by Dementia UK by your fundraising deadline, usually three weeks prior to your event. Dementia UK supporters receive 50% off their registration fee, as we are an Ultra Challenge series partner
  • Self-fund with fundraising: pay for your place in full then raise as much as you can for Dementia UK, with no minimum fundraising target

Click ‘Sign up’ or explore our Ultra Challenge calendar for full challenge details and to register for your chosen event and distance. Please also read our fundraising terms.

The Ultra Challenge Team has a useful  help centre page  that covers many frequently asked questions. You can also download the Ultra Challenge app for help with your training, logistics and more.

If you have any specific event questions or your question is not covered in the FAQs or on the app, please contact the Ultra Challenge Team at info@ultrachallenge.com or on 020 7609 6695 (Monday-Friday 9am-5pm).

Right now, nearly one million people are living with dementia in the UK. Too often, families struggle to find support, leaving them feeling exhausted, overwhelmed and alone.

The funds you raise will ensure more families can access the life-changing support of our dementia specialist Admiral Nurses. Together, we can make sure no one faces dementia alone.

Read Will and his mum Ronnie’s story about how Ronnie’s diagnosis of Alzheimer’s disease has impacted their lives, and how Admiral Nurses are providing their family with a lifeline.

We know you’re  committed to fundraising  for Dementia UK, and we’re committed to helping you!

As part of Team Dementia UK, you will receive:

  • a branded Dementia UK technical top – delivered two to three weeks before event day
  • access to training plans and videos to help you get ready for your event
  • expert fundraising advice and support from our Fundraising Team, with a dedicated Events Manager
  • fundraising materials for your activities, including fundraising guides, posters, banners, t-shirts and collection items to help you reach your goals

You can also use our  downloadable fundraising resources  to encourage people to support your Ultra Challenge and fundraising.

If you need any fundraising support or have questions about taking part in an Ultra Challenge for Dementia UK, contact our Challenge Events Team at events@dementiauk.org

Getting started

Fundraising ideas

Organising fundraising activities alongside your main challenge will help you smash your goal. Here are some ideas:

  • Host a quiz
  • Arrange a raffle
  • Hold a sweepstake on how long your challenge will take, or how many steps you’ll cover
  • Organise a bake sale at home, at work or in your community
  • Create a sponsored playlist, where supporters donate to add their choice of song to your challenge soundtrack

JustGiving 

Setting up a JustGiving page is a great way to fundraise online. Share your link with family, friends and colleagues, and watch the donations roll in.

You can use  JustGiving  to explain why you’re taking on your challenge for Dementia UK, keep track of how much you’ve raised, and even share your training progress using Strava so your supporters can see how well you’re doing. The event organisers have set up official events on JustGiving so make sure you connect to the right event on your page.

The more you update and share your JustGiving page, the more donations you’ll receive. Contact events@dementiauk.org if you need more advice.

Gift Aid

If your supporters are UK taxpayers and their donation is voluntary (not proceeds of a sale), we can claim an extra 25p for every £1 donated, at no extra cost to them. Make sure they fill in the Gift Aid form or tick the correct boxes if they’re donating online.

How to pay in your fundraising

If you’re fundraising through JustGiving and your page is connected to Dementia UK, the donations will automatically come to us. If you’ve got cash to pay in, you can do this online, by phone, by bank transfer or by post.

How to pay in your fundraising

How your money will be used

Every donation you raise, big or small, will make a huge difference to families facing dementia. Did you know a donation of just £4 to your fundraiser could pay for the telephone costs of one family calling our free Helpline for immediate support?

Dementia UK supporter Emma

“I needed focus as my dad recently went into a nursing home and is in the late stages [of dementia] and can do nothing for himself, so the least I could do was walk 26 miles and raise money and awareness.”

– Emma, who took on the London Winter Walk marathon in 2025