Mary-Ann Ochota joins a group of walkers, riders and horses in the Scottish Highlands as they follow St Columba's Way, a pilgrim route from St Andrew's to Iona. It's a trip organised by The Big Hoof, a group which promotes adventure and wellbeing through long journeys travelling with horses, on both new routes and ancient ones. Participants join the journey for as long as they want - on foot, horseback or bicycle
