Situated in the Scottish Highlands, the Cairngorms National Park is a vast, living, changing landscape, formed not just by the crushing glaciers of the past, but also by the lives of the people who live and work in the area.

Cameron Angus Mackay takes you to meet some of those people in this new four-part series.

For audio links and show notes, go to: www.thebiglight.com/cairngormscharacters