bay boulders chalk cliff coast coastal and oceanic landforms England english Great Britain Natural landscape promontory rock sandstone sea shore stones Sussex coastline estuary hillside home house low manor Mawddach mudbanks natural nature peace quality sandbanks scene shingle tidal tide view wales water welsh calm cliffs cove entrance Gairloch gate grass green highlands inlet ocean Redpoint rocky scotland scottish shelter steep waves Balearic Islands blue boat cruiser deep holiday island leisure majorca Mallorca mediterranean pleasure ship Spain vacation alone autumn beach beauty exercise Gower landscape lonely quiet Rhossili sand single solitude tranquil walk wave coastal Devon farmland February fields footpath hamlet headland hill path slope terrain track trail bunkers cape coastal-landforms concrete defence defend defending defense entry hidden hills historic history lookout partially-hidden pill-box remnants rocks shrubbery shrubs sloping stony vantage-point vegetation World-War-2 wwii