The park contains the highest point in Renfrewshire, the Hill of Stake, which reaches an elevation of 522 meters.
Castle Semple Loch is a designated Site of Special Scientific Interest due to its importance for wintering wildfowl.
The park's diverse ecosystem supports the Hen Harrier, a protected bird of prey species.
Barr Castle, located within the park boundary, is a well-preserved example of a late medieval tower house.
The park was established in 1990 by the merger of several smaller country parks and conservation areas.
Clyde Muirshiel Regional Park is the largest regional park in Scotland, encompassing over 108 square miles of rural landscapes across Renfrewshire, North Ayrshire, and Inverclyde. It centers on the Barr Loch and Castle Semple Loch, providing significant habitats for migratory and resident bird populations. The park serves as a hub for outdoor water sports, including sailing, kayaking, and paddleboarding at the Castle Semple Centre. Terrain varies from low-lying wetlands and lochs to the moorland heights of Misty Law and Hill of Stake. It contains the ruins of the 15th-century Barr Castle in Lochwinnoch. The park features a dedicated visitor center that provides information on regional biodiversity and trail maps for cyclists and walkers. Several long-distance walking routes intersect the park, including segments of the Sustrans National Cycle Network.
The boardwalk overlooking the reedbeds at the Barr Loch during the golden hour.
Wear waterproof footwear even in summer, as the moorland trails can be boggy following rainfall.
Check the wind speed at Castle Semple before planning water activities, as conditions on the loch change rapidly.
Bring binoculars for birdwatching at the RSPB visitor facilities adjacent to the park lochs.
Attempting to climb the higher moorland peaks without a physical map or GPS, as mobile signal is unreliable in deep glens.
Adhere to the Scottish Outdoor Access Code by keeping dogs under close control and leaving no trace of litter.
