David
It's near Charterhouse on the Mendips. You park at grid ref ST503556 and follow footpath west.
Graham

Or if you were in the Cheddar Gorge, drive up to the Black Rock area [some parking here] and walk through the wooded pathway, Velvet Bottom is at the top of that walk.also here is WWT area Longwood ,good for Woody's the odd tawny and little owl,also treecreeper