The Lindblad Expeditions ship National Geographic Explorer pushes through ice in Crystal Sound, south of the Antarctic Circle

antarctic ocean background people bows bow color image color images color colour colour image colour images crystal sound days day great southern ocean high angle high angle views high angle view high angles high angle view high angle views horizontal horizontals iceberg icebergs ice lindblad expedition lindblad expeditions lindblad loud speaker loud speakers loudspeaker loudspeakers landscape national geographic explorer outdoors outside people in background south polar ocean southern ocean transportation transport s051