Military wives are hoping to raise thousands of pounds by cycling nearly a 1000 miles in just two days.
The women are taking it in turns on exercise bikes to support a friend who is actually riding from John O'Groats to Lands End in aid of three forces charities.
Emma Ennis, 28, wife of Lance Sgt Edward Ennis, of 1 Scots Guards based in Catterick Garrison, left John O'Groats earlier this week.
Emma said: "1 Scots Guards had such a hard time in Afghanistan last time and Edward lost a good friend. You just feel so helpless yet desperate to try to do something to help. That's how this fund-raising idea was borne. And once they heard about it, the wives and girlfriends didn't need any persuading. They were so enthusiastic.
"When I'm out on the road, it'll be a great boost to me knowing they will be pedalling away and raising money on the static bikes here in the Garrison. I am so proud of them."
Thirty five women are taking part in the event at a superstore in Catterick Garrison. Liz Ryan has first hand experience of the support the charities provide.
Emma's journey down the country is expected to end on 6 August when she reaches Lands End.
The money raised will be split between ABF, The Soldiers' Charity, SSAFA - Forces Help (The Soldiers, Sailors, Airmen Families Association) and 1 Scots Guards Colonels Fund.