Guests from the Lindblad Expedition ship National Geographic Explorer, Antarctica

antarctic antarctic peninsula antarctica antarctis color color image color images colour colour image colour images circumpolar day days extreme environment extreme terrain extreme terrains eco tourism ecological ecology exploration explored explore explores exploring glacier glaciers green tourism harsh harsh environment harsh terrain hiked hike hiker hikers hikes hiking horizontal horizontals lindblad expeditions lindblad lindblad expedition landscape mountain mountains outdoors outside scene scenery scenes scenic scenics small group of people small groups of people south pole south sustainable tourism tourism tourist tourists to trek trek trekking warm clothes warm clothing winter clothes winter clothing s051