barnacle barnacles chilly clam clams coast cold creature Crustacean damp life living ocean sand sandy sea wet anthropoids arthropod auckland beach coastline crustaceans macro new zealand north shore salt shore shoreline sveres water takapuna mollusk mollusks mussel mussels shell animal aquatic aquatic life blue closeup corals decorative India krayker marine nature ornamental pest pointed pointy sands sea life sea shells sky snail spiral shell stick surface undersea attached background Devon England limpet mollusc texture Balanus boulder cluster crowd crustacea Gower group invertebrate pool rock sessile wales coastal covered natural speckled stone Great Britain hard Pembrokeshire rocks rough welsh wild cling rockpool seaweed shells