Sunset, Dunnet Dunes. A Saturday afternoon in February in Caithness. Dunnet Beach is a spectacular 3 kilometre long stretch of sand backed by steep, high dunes covered with the marram grass seen here. Towards the north end of the beach near Dunnet is the main car park next to the Dunnet Bay Campsite and Caravan Park. The small Spindrift Centre here is also well worth a visit.