Enjoy some time in the fresh air with a stroll along the gorgeously fine sands of Lunan Bay. Divided in the middle by the Lunan Water, the 4 km beach is surrounded by high sand dunes and sea cliffs. This three hour Lunan Bay walk will take you to the natural sea cave at the north end of the beach, and the sea arch nearby, before heading to the south end of the beach to visit the ruined Red Castle which dates from the 1100s. Look out for birds, including great grey shrikes and rough-legged buzzards, as well as washed up gemstones on the beach.