This Cairngorms Lairig Loop fastpacking tour is a guided outdoor adventure crossing the Scottish Highlands over two days. Participants travel on foot with minimal gear for a mix of trail running and hiking through the famous Lairig Ghru and Lairig an Laoigh mountain passes, linking Speyside and Deeside with an overnight stop in the Cairngorms area. Fastpacking blends light backpacking with running, offering a physically engaging way to experience remote glens and high terrain. The tour is suited to fit, experienced walkers or runners seeking an extended Highland challenge across classic mountain routes.