Sign up for your own personal walking challenge this July!

We're asking fab fundraisers like you to walk 100km in 31 days.

Take on The Big 100 where you want, when you want. Why not skip the drive to work and walk for the month instead? Or head outside for a few big weekend rambles?

However you take part, the sponsorship you raise will take us a step closer to a world without lung disease.

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