In geological terms, the Clyne River is a ‘misfit stream’. It gently meanders through the steep sided valley, and although the Clyne is classed as a main river, and it’s very pretty, it’s hardly the roaring torrent associated with deep rock erosion. Really, the river is an opportunist – it runs along a course carved out by the torrents of melt water containing ice and debris from the retreating glaciers as they drained at the end of the ice-age.
The Clyne River rises around Fairwood Common and continues down the Valley to the sea at Blackpill. The former LMS railway line, which is now a cycle way and footpath, broadly followed the same route, and these two features form the spine of the Valley.