bank current England english flow Great Britain green landscape nature North Yorkshire peaceful quiet river River Ure tranquil trees water Yorkshire Dales National Park beautiful beauty boulder coastline conifer gnarled granite granitic hard nostalgia old rock rough rugged Sardinia sea shoreline tough tree view vignette wistfulness beak bill bird black Branta brown canada canadensis caution cautious edge feather feet foot geese goose head hesitant hesitate neck Sussex white Arrowtown branch leaf leaves natural Natural landscape new zealand plant River Arrow Salix shallow spring stream willow Antactica clouds ice icy lava McMurdo Station mountains ocean Ross Ice Shelf Ross Sea seascape skua sky SouthPole summer winter aerate aeration architecture background buttresses cascade cascading dam danger drop Elan Valley fall hold landmark reservoir retain stone texture wales wall welsh bay coast everglades flats gulf Gulf of Mexico inlet mangrove mangroves Mud mud flats salt water saltwater sea weed seaweed silt agua aqua aquatic freshwater h2o lago lake lillie pad lillie pads lilly pad lilly pads pantano swamp weed wet wetland wetlands