It could almost be a plot for a movie: three blind dogs embark on a 174-mile trip in the Scottish Highlands, without leads.

However, unlike Homeward Bound: The Incredible Journey, this plot has actually come to life, as three disabled dogs are trekking across northern Scotland to raise vital funds for charity and show owners of other disabled pets that they can still enjoy excellent quality of life.

Black labrador Frodo Baggins and fellow blind dogs Flag and Sherlock will embark on their adventure this weekend, when they trek through the Great Glen to raise money for the Glendrick Roost Animal Welfare Centre near Aberfoyle.

Although they are being guided along the exhausting route by Glendrick Roost owner Mione Morrison, the dogs will not be on leads, and will largely be making their own way through the Glen.

The feat would be more than enough work for fully able dogs, so to have three blind ones do it displays their tenacity and courage, Ms Morrison told the Scottish Daily Record.

"They are remarkable animals and have often learned the hard way that disobeying a command usually results in a bumped head. I want people to realise how much a blind dog or any other disabled animal is capable of because many are discarded by their owners," she explained.

During the trek, the three dogs will be eating plenty of premium dog food for energy, while Ms Morrison said she will be on hand at all times in case they do lose their way.

It is hoped that sponsorship generated by the dogs' exertions will help to raise at least £2,000 for a new animal centre, and help the organisation continue saving dogs such as Flag, Sherlock and Frodo, when they are in desperate need.

Since it was founded in 2003, Glendrick Roost has provided a home for a variety of animals, ranging from dogs, cats and gerbils to Shetland ponies, donkeys and Clydesdale horses, while Ms Morrison has personally adopted some of the animals.

As well as raising money for the new centre, she hopes the Highland trek will ultimately show people just what disabled animals are capable of.

She concluded: "Through the new centre, we hope to educate people about disabled animals."

Written by: Hannah