Castle Semple Loch

Castle Semple Loch
Castle Semple Loch
	Watersports on Castle Semple Loch
	Castle Semple Loch
Location	Renfrewshire, Scotland
Coordinates	55°47′N 4°36′W / 55.783°N 4.600°W
Primary inflows	River Calder
Primary outflows	Black Cart Water
Basin countries	Scotland
Max. length	2.5 km (1.6 mi)
Max. width	0.6 km (0.37 mi)
Settlements	Lochwinnoch

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.