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Big 100

Fight lung disease and walk 100km in 30 days. Where you want, when you want.

1 September 2021 to 30 September 2021

Back by popular demand, the Big 100 is bigger than ever!

As life for most of us gets back to normal, there are still over 12 million people in the UK with a lung condition. We’re joining forces with Asthma UK to change this and lead the way to a world where no one struggles to breathe.

Join us on this mission and walk 100km in 30 days. Or, if you’re looking for more of a challenge, go for The Double! 200km in 30 days. There’s plenty of prizes to be earned too, including a limited-edition water bottle and bespoke medal.

The Big 100 2021 is now closed. Keep your eyes peeled for more virtual campaigns coming soon!




If you have any questions about this event, please do not hesitate to contact our Events Team on 0300 222 5800 or email

Two people at Take Steps

Take Steps

Show your support with a sponsored walk with your friends and family!

Board at home

Fundraising from home ideas

We’ve put together some fun and easy, at home fundraising ideas to keep you, your friends and the family busy during lockdown and beyond!