At the Beith end the unclassified 'Kerse' road runs between Beith and the A760 enables access to the northern shore of the loch.
Part of the Sustrans National Route 7 runs close to the loch, starting at Paisley Canal railway station and following the same route as National Route 75 until Johnstone, passing Elderslie and continuing south-west to Kilbarchan, Lochwinnoch and Kilbirnie, passing by Castle Semple, Barr as well as Kilbirnie Loch.