banks current danger England english flood flow Great Britain muddy river spate surge Sussex torrent trees turbulent water winter bank bright christian church drama dramatic grey Inverness riverside sky spire steeple storm sunshine town townscape worship attraction bridge canada cliff conifers drop fall forest gorge holiday landscape leisure natural nature tourism tourists vacation branches drooping green hanging Salix spring Surrey weeping willow bend dordogne farm fields France french hamlet houses islet panorama rural valley view estuary fence gate hills Mawddach peaceful stream tranquil wales welsh canal path reflection summer towpath track waterway calm cloud tree burst disaster engulf pond pool road spating