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Charity walks & treks

Whether you join one of our flagship One Walk events or scale the summit of Kilimanjaro, taking part in a fundraising trek or walk is the perfect way to make lifelong memories and achieve something really special. We have a wide range of UK and overseas challenges available.

Several walkers in Breakthrough T1D One Walk Nottingham raising money for people with type 1 diabetes.

Upcoming walk and trek events

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BreakthroughT1D One Walk walkers group with medals around necks
Walks & treks
Multiple dates

One Walk 2026

Walk together. Raise together. Move us closer to a world without type 1 diabetes. Register your interest now!

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Walkers wearing warm clothes at the Ultra Challenge London Winter Walk start line
Walks & treks
24 or 25 January 2026

London Winter Walk 2026

Kick off your 2026 with this fun challenge for the whole family, taking in the amazing sites of London.

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Walkers at Bath 50 Ultra Challenge start line
Walks & treks
28 March 2026

Bath 50 Ultra Challenge 2026

Join 2,000 other challengers on a route taking in the sites of historic Bath and surrounding countryside.

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Selfie of three Breakthrough T1D supporters on hillside during Yorkshire Three Peaks walking event
Walks & treks
18 April 2026

Yorkshire Three Peaks 2026

Three peaks, 25 miles and 12 hours – are you ready to take on this exhilarating trek challenge?

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Walkers on the Thames Path by the river on the Windsor 50 Ultra Challenge.
Walks & treks
18 April 2026

Windsor 50 Ultra Challenge

Join 2,000 other challengers on a picturesque route following the Thames Path along the river.

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Walkings on coast walking on Ultra Challenge Isle of Wight trek
Walks & treks
2-3 May 2026

Isle of Wight Ultra Challenge 2026

Tackle the island’s stunning coast path along spectacular cliffs and help us drive towards a cure for T1D.

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Sun setting in fairly cloudy sky over participants on a coastal path of the Jurassic Coast Ultra Challenge.
Walks & treks
16-17 May 2026

Jurassic Coast Ultra Challenge 2026

This hugely popular Ultra Challenge takes you along spectacular World Heritage coastline to the town of Bridport.

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Ben Nevis landscape with mountain and lake
Walks & treks
23 May 2026

Snowdon 2025

This family-friendly challenge follows the Llanberis Path on a 11-12 mile walk to the summit of Snowdon.

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London to Brighton Ultra Challenge walkers
Walks & treks
23-24 May 2026

London 2 Brighton Ultra Challenge 2026

Travel from capital to coast, taking in the picturesque Surrey and Sussex countryside along the way.

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Lake District Ultra Challenge trek walkers
Walks & treks
6-7 June 2026

Lake District Ultra Challenge 2026

Tackle the hills of the stunning Lake District National Park in this Ultra Challenge with a choice of distances.

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Peak District scenic view of stile in front of yellow and green hills, with some clouds
Walks & treks
4-5 July 2026

Peak District Ultra Challenge 2026

Starting in Bakewell, over 3,000 adventures will take on the fabulous Peak District as a walk, jog or run.

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London streets at night to illustrate the Thames Moonlight 10 Ultra Challenge walk.
Walks & treks
11 September 2026

Thames Moonlight 10

As darkness falls and the moon rises, embark on either a 10-mile or 10km walk through the heart of London.

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Runners at the Ultra Challenge Thames Bridges Trek starting line with smoke rising
Walks & treks
12 September 2026

Thames Bridges Trek 2026

Take in unrivalled views of the London skyline from the city’s best vantage points – its bridges!

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Thames Path Ultra Challenge walkers.
Walks & treks
12-13 September 2026

Thames Path Ultra Challenge 2026

Starting at Putney Bridge, you’ll follow the famous towpath and take in the gorgeous scenery of Richmond, Hampton Court and Windsor.

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Two people in blue Breakthrough T1D T-shirts walking in park sharing a joke
Walks & treks
Anytime

One Walk Your Way

Organise your own local One Walk to raise money for people living with type 1 diabetes and be part of a great community.

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Runners at the Ultra Challenge Thames Bridges Trek starting line with smoke rising
Various
Various dates

Ultra Challenge Series 2026

Choose from over 20 Ultra Challenge events across the UK and help to drive breakthroughs in type 1 diabetes in 2026.

Why walk for Breakthrough T1D?

Walking and trekking is a hugely popular way to raise funds for charity and there are challenges suitable for all abilities and ages.

By walking for Breakthrough T1D, every step will be powering our world-class research into type 1 diabetes.

Our trekkers will receive full support from our friendly team, plus a free Breakthrough T1D T-shirt to wear with pride during their challenge, so sign up today!

With hundreds of challenges to choose from it has never been easier to get those steps in and help support Breakthrough T1D at the same time.

Get in touch

If you have any questions about walking for Breakthrough T1D, please email our Active Events team.

Other challenge events

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Happy runner Sue in the London Marathon 2025 running for Breakthrough T1D to raise money for type 1 diabetes.

Runs

From 5km to ultra-marathons, worldwide to local, find a running event to suit you.

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Two cyclists riding in countryside in the London to Brighton Cycle event.

Cycle rides

Hop in the saddle and take on a fundraising cycle ride for Breakthrough T1D.

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Tandem skydivers in the sky

Adrenaline

From skydives to zip-wires, our adrenaline events are the perfect choice for all thrill-seekers.

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