Where the Quantock Hills AONB meets the Bristol Channel on the West Somerset coast.
And the waves from the Atlantic wash away the silt of the river estuaries and undercut the shale cliffs.
Leaving great intertidal platforms, sections through the Lilstock Formation of Jurassic and Triassic rocks, and revealing the fossils of ammonites and dinosaurs.
While ships pass up the channel to Bristol and South Wales, guided by the landmark church tower.
Pictures from April 2008. More in the Somerset gallery.