The Lindblad Expedition ship National Geographic Endeavour celebrates crossing the Antarctic Circle

antarctic circle antarctic antarctic peninsula antarctica antarctis boat boats circumpolar color image color colour image colour discover discoveries discovering discovery day days deck decks eco tourism ecological ecology expedition exploration explore explored explores exploring green tourism high angle views high angle high angle view high angles high angle views high angle view horizontal horizontals lindblad expedition lindblad expeditions lindblad landscape national geographic endeavour ocean outdoors outside ship ships small group of people small groups of people south south pole sustainable tourism tourists tourist transport transportation tourism transports travel travelled travelling travels vessel vessels water s048