Body of water clouds dawn dusk horizon lake Lake district loch nature outdoor reflection reservoir shadow silhouette sky sunrise sunset twilight water water resources arches architecture dam Elan Valley hills hold landmark landscape old retain stone tower wales wall welsh bank countryside creek England forest Great Britain green margin natural pond shore Sussex wood cumbria english fell moorland pool ridge tarn valley view wilderness diminished drought empty lack less rural shortage spring buttresses road background hampi India landscapes river rivers rock rocks south stones tungabadra wallpaper appearance community concrete construction domestic-supply drinking-water height high pressure public reserve storage structure suburban supply tall trees treetops water-supply watertower building china controversial electricity energy environment flood hydro hydroelectricity power protection Sandouping three gorges Yangtze access afternoon beach day dock inlet Jetty noon ocean sand vehicle aerate aeration cascade cascading danger drop fall