The Myddyfi had a sheet of ice on its surface until it was broken by passing cars. Protruding in from the right of shot, just downstream of the tiny weir that the ford forms is the remains of the sheet sculpted into a bubbly shape by the fast flowing water.
Uploaded to Geograph by Nigel Davies on 26 December 2010
Photo © Nigel Davies, 26 December 2010. Licensed for reuse under this Creative Commons licence