A small village 5 miles east of Thurso, near Scotland's far north coast; once famous for it's flagstones. Castlehill flagstones found use in places as far afield as South America and Australia.
Castletown lies a short distance inland from the southern corner of Dunnet Bay, five miles east of Thurso. Dunnet Bay faces north west and is protected to the north by the bulk of Dunnet Head. The bay's south eastern side is bounded by a beautiful two mile long beach backed by high dunes. The southern end of the beach expires at the mouth of a stream, once used to power the huge, but now ruinous, Castletown Mill.