1116-39560 - A backpacker crosses the exotic landscape of the ash and pumice-covered Valley of Ten Thousand Smokes in Katmai National Park, with Mt. Katmai (left), Trident Volcano (right), and the Knife Creek Glaciers looming in the distance; Alaska, United States of
979-9357 - Lindblad Expeditions guests on board the National Geographic Explorer with a lone adult emperor penguin (Aptenodytes forsteri) on sea ice, Antarctica
979-6953 - Crew and guest on Zodiacs in the Atlantic Ocean from onboard the National Geographic Endeavour crossing the Atlantic Ocean from Lisbon, Portugal to Salvador, Brazil
979-9359 - Lindblad Expeditions guests on board the National Geographic Explorer with a lone adult emperor penguin (Aptenodytes forsteri) on sea ice, Antarctica
979-6952 - Crew and guest on Zodiacs in the Atlantic Ocean from onboard the National Geographic Endeavour crossing the Atlantic Ocean from Lisbon, Portugal to Salvador, Brazil