Guests from the Lindblad Expedition ship National Geographic Explorer take the Polar Plunge off ice floe in the Weddell Sea, Antarctica, Southern Ocean

1 man 1 man only 1 person 1 1 person only antarctic antarctic peninsula antarctica antarctis boats boat color images color image color colour image colour images colour circumpolar dived dives dive diving days day elevated view expedition exploration exploring flen from above full length fun habitat habitats high angle view high holiday holidays horizontal horizontals lindblad expeditions lindblad expedition lindblad landscape man men men only males male mid air movement named ship named ships national geographic explorer natural phenomena natural phenomenon natural worlds natural world nature one man only only men one man one person one one person only outdoors outside rope safety equipment ship ships snow south south pole sports equiment tourism tourist tourist destination tourist destinations tourists vacation vacations vessel vessels water weddell sea s064 s064 te