The scenic route along Lochs Tummel and Rannoch (www.rannochandtummel.co.uk) is worth doing any way you can – by foot, bicycle or car. Hillsides shrouded with ancient birchwoods and forests of spruce, pine and larch make up the fabulous Tay Forest Park, whose wooded hills roll into the glittering waters of the lochs; a visit in autumn, when the birch leaves are at their finest, is recommended.
Eighteen miles west of Kinloch Rannoch the road ends at romantic and isolated Rannoch Station, which lies on the Glasgow–Fort William railway line. Beyond sprawls the desolate expanse of Rannoch Moor. There's an excellent tearoom on the station platform, and a welcoming small hotel alongside. Be aware that Rannoch Station is a dead-end, and the nearest service station is at Aberfeldy.