The idea of a 110-mile driving marathon across Britain is a gruelling endeavour for any teenage girl, but for 13-year-old Octavia Woodward it is an amazing feat.

Born with Spinal Muscular Atrophy (SMA), Octavia is now confined to her wheelchair, has limited lung function and little strength.

To help The SMA Trust reach its target of £2m Momentum Campaign target, Octavia will 110 miles from the Royal Windsor Horse Show to Wincanton Racecourse.

Following competiton in the disabled driving classes at the show, the South and West Wilts Hunt branch of the Pony Club member and her 20-year-old driving pony Diddy, will set off on 13 May for their Mad Marathon five-day carriage drive.

Octavia’s mother, Henrietta Woodward who will be accompanying her, said: “Octavia has always adored horses, and rode a little bit when she was young.

“Driving gives her a sense of independence, and means she can do things she can’t normally.

“She has always wanted to compete at Windsor Horse Show, and this gives her a wonderful excuse!”

Octavia is attempting to raise £100,000 for SMA from sponsorship and donations.

To make a donation visit: www.justgiving.com/octavia-woodward