Castle Semple Loch

Castle Semple Loch
Watersports on Castle Semple Loch
Castle Semple Loch is located in Renfrewshire
Castle Semple Loch
Castle Semple Loch
LocationRenfrewshire, Scotland
Coordinates55°47′N 4°36′W / 55.783°N 4.600°W / 55.783; -4.600
Primary inflowsRiver Calder
Primary outflowsBlack Cart Water
Basin countriesScotland
Max. length2.5 km (1.6 mi)
Max. width0.6 km (0.37 mi)
SettlementsLochwinnoch

Castle Semple Loch is a 1.5-mile-long (2.5 km) inland freshwater loch at Lochwinnoch in Renfrewshire, Scotland. Originally part of an estate of the same name, it is now administered by Clyde Muirshiel Regional Park as a watersports centre. An RSPB bird sanctuary is located on the loch's southern shore.