Geometry of Pebbles

A busy day involving some gardening and then playing on the bandstand at Pateley Bridge. I was pretty much in the middle of the bandstand so didn't get wet when it rained, but Tim was at the back edge and did!

By the time we go back the flower I'd picked had decided it was getting late and folded its petals up - so it'll get photographed another day. So here's a pile of pebbles from our last holiday along with some bits and bobs from an old book online.