St Cyrus National Nature Reserve (NNR) is situated between the village of St Cyrus and the North Sea in the far south of the council area of Aberdeenshire in Scotland. The reserve comprises a narrow strip of land that is 3.5 km long and less than 500 m across at its widest point: the total area is 92 hectares (230 acres), most of which is only a few metres above sea level and bounded by cliffs to the west. It forms the northern third of Montrose Bay, with the River North Esk marking its southern boundary. The reserve was declared in 1962, and is managed by NatureScot. The cliffs and dunes provide a nationally important habitat for flowering plants and insects, many of which are at their northern limit in Britain. The reserve is one of the most important botanical sites on the north-east co