The walk along Hadrian’s Wall is one of the top ten wall walks in the Lonely Planet guide. And over the last six years the number of end to end walkers along the trail has gone up by 67%.

Things like the illumination of the wall in 2010 and the connecting light event during the Olympics brought it to a global audience.

But now there are concerns about large groups doing charity walks and challenges along the trail causing too much wear and tear.

I’ve been to part of the wall in West Northumberland to find out what damage walkers cause:

That’s Brian Scott from the Hadrian’s Wall Trust talking to me  beside – not on! – a very windy part of Hadrian’s Wall near Chester’s Fort in West Northumberland.