England english garden Great Britain nature peace pond pool rhododendron shrubs Sussex trees water woodland beach boulder coast Dorset Lyme Regis rock sea shore slab stone tide blue cool fun guidelines inviting lanes leisure lines refreshing ripples sport swimming tiles chairs clean clear deck chairs edge estate plants poolside private private estate recreational shade shelter surrounding surrounds swimming pool tropical vegetation natural oasis river springs stream tree wade waterfall barnacle cling mollusc rockpool seaweed shell shells activity child children construction outdoor slide slider tower activities angles architectural-elements architecture chemical-sanitation chlorinated covered exercise filled full glass heated hot-tub hydrotherapy indoor-pool indoors inside interior jacuzzi light lighting lit maintained monitored paddling-pool recliners reclining recreation reflections relaxation sanitized seating sheltered spa-pool swimming-bath swimming-pool undercover wading-pool warm windows