building cement conference retreat retreat center arch architecture backyard buildings courtyard entrance exterior foliage garden greenery keyhole-doorway landscaping moon-gate moongate paved paving peaceful plants quiet retreat-center retreat-centre sepia shrubbery tranquil tranquility trees vegetation walkway walls yard black-and-white gray grey greyscale monochrome bar beach coastline Italy low natural nature retreating rills ripples sand sea tide water waves coast Dorset England english gentle Great Britain natural environment ocean outgoing shore Studland wave animal bad cliff domesticated farm fence field green livestock mammal meadow move Pembrokeshire rocks sheep view wales weather welsh brooding clouds dramatic heather holiday home house mountains new build remote roof rugged sky vacation white blue boulder cloud dwindle edge high icy July landscape margin melt norway norwegian plateau rock snow thick pool road