A small study of the way light is reflected, transmitted, and refracted by rippling clear water in rock pools full of brightly coloured seaweed.
At Eype, blue clay cliffs slip, and subsequently unsupported rock strata above it collapse. Large boulders then roll down to the shingle shore. The variety of rock types, and sometimes the fossils within them (like belemnites), can be observed at close quarters. The newly surf-washed rocks, part-embedded in the bright orange pea-gravel and pebbles, make striking compositions with the wet surfaces revealing a greater intensity of colour, and finer detail of texture and structure.
Click here for earlier posts about EYPE.
Peering into the rock pools on the Worms Head Causeway in Gower reveals colourful kaleidoscopic patterns of common British seaweeds beneath the rippled clear water.
The Seasearch Guide to Seaweeds of Britain and Ireland produced by Francis StP. D. Bunker, Christine A. Maggs, Juliet A. Bridie, and Anne R. Bunker, published by the Marine Conservation Society in 2010, ISBN 978-0-948150-51-7, is a really good book jam-packed with wonderful photographs and clear descriptions of seaweeds to aid identifications.
One rainy morning I walked the coastal path along the terrace at the foot of Rhossili Down in Gower. Clouds shrouded the slopes of the Down above me. Ahead of me, Burry Holms and Llangennith Burrows were part concealed by mist. Below me, the tide was going out – far out. The sand on the beach was still wet from the waves and the rain. Slowly the cloud cover thinned and allowed a filtered light to penetrate. The pale light was reflected by the shore, high-lighting the sea-sculpted rows of ridges and ripples in gentle gleaming silver. A stream cascading from the height of the Down worked its way down to the beach, where it spread out in a fan of interweaving channels that cut across the parallel ridges on its way to the water’s edge. Coloured sediments carried by the stream tinted the silvery patterns and made them seem opalescent.
Dark streaks drawn into abstract designs by the swash and back-swash of waves sometimes decorate the succession of driftlines on the sandy beach at Rhossili Bay as the sea recedes. The blue tinge of the darker areas makes me wonder whether they are composed of comminuted fragments of blue-black mussel shells.
I never cease to be amazed by the new variations of natural patterns in the sand revealed with each ebbing tide on the vast sandy shore at Rhossili Bay in Gower, South Wales. These photographs were taken in March 2015 and add to the continuing documentation of the array of topographical changes that affect this wonderful beach.