Mounts Bay Beach

What Seaglassmap found here

A broad bay near Penzance, with long sand around Marazion and quieter coves at the edges, all of it under St Michael's Mount. The South West Coast Path runs along the back of it and there are car parks around the bay. Nobody has written up the glass here yet. Photo : Tony Hisgett from Birmingham, UK / CC BY 2.0, via Wikimedia Commons. https://commons.wikimedia.org/wiki/File:St_Michaels_Mount_2_(282088243).jpg