beach blue cliffs coastline Cornish cornwall England english Great Britain natural nature rock rocky sand sandy sea shore tide waves Anthyllis vulneraria coast flora flowers kidney vetch May pink spring wild yellow developing fern fresh frond garden growth pinnae plant pteridophyte stems temperate tree barnacles Cirripedia low tide Mollusca mussels Mytilus rocks seashells sessile shellfish ancient architecture battlements Cotehele fortified historical house manor national trust old stone tower windows bushes dovecote rural trees apple bee blossom fruit honeybee Malus petals pollination stamens green landmark landscape meadow mirador Towan Head turret view coastal footpath path trail 12th Century christian church Grade I religion St Enodoc steeple