boulders coast England english evening Great Britain horizon natural nature peace sea seashore shore stones Sussex tide water wave animal back canada cetacean dive fin hump humpback mammal marine Megaptera novaeangliae ocean ridge whale glacial glacier green hillside landscape mountains norway norwegian river snow snow melt steep valley view wild ardennes Belgium europe grass hills trees atmospheric berlin forest germany grunewald marsh marshland moody moor nature reserve summer swamp tree woodland bushes environment fields flowing meander shrubs moss mountain pebbles rock rocks stream walls