canada chasm cliff current deluge descent drop fall flow gorge montane moss mountain natural nature opening pour river rock Rockies Rocky Mountains shade.shadow surge water apartments city docks dundee dwelling estuary evening flats hill houses law sea shore shoreline Tay town winter calm canal cloud England Great Britain landscape peaceful reflection rural sky Sussex tranquil tree bank barge boat chair english folding life living narrowboat plank seat towpath wiltshire bridge burst danger disaster engulf flood pond pool road spate spating clouds erosion Gower meander Oxbow Pennard Pill sandy Three Cliffs Bay trees valley wales welsh woodland background environment flat grass HDR High Dynamic Range house peace spring bird blue countryside gentle placid swan buildings center from the sky green London motorway panorama roofs street thames yards autumn brown bushes castle fake folly Kinnoul orange Perth rocks ruin scotland tower viewpoint