Balloch is a town on Clydeside in central Scotland, on the southern shore of Loch Lomond. It expanded from 1850 when the railway arrived, bringing trippers from Glasgow to the pier, whence boats and charabancs conveyed them around the loch. Balloch is still easy to reach by public transport, but this part of the loch is lowland and urban, and few boats now sail so you need your own transport to reach the more attractive areas of Loch Lomond and The Trossachs National Park.
The short River Leven drains the loch, flowing south from Balloch through Jamestown, Alexandria (the largest town), Bonhill and Renton. This Vale of Leven conurbation, population 20,000, is industrial and residential, with little to interest the visitor. The river flows into the Clyde estuary at Dumbarton.