Rocks of coral

There are barriers between the beach and the sea at Eersterivierstrand. These are composed of upended layers of rock. The composition of the further one in this picture gives rise to strange shapes when it is eroded. It is very sharp to walk on and it was only when I clambered over a less eroded piece of rock that I discovered bits of coral hiding in the sandstone. I think the rock formation may well be in part an upended coral reef in sandstone.

Done