The Lindblad Expedition ship National Geographic Explorer near glacial run-off in the Svalbard Archipelago, Norway, Arctic, Europe

The Lindblad Expedition ship National Geographic Explorer in the Svalbard Archipelago, Norway, Arctic, Europe

The Lindblad Expedition ship National Geographic Explorer at Austfonna in the Svalbard Archipelago, Norway, Arctic, Europe

The Lindblad Expedition ship National Geographic Explorer running Zodiac operations in the Svalbard Archipelago, Norway, Arctic, Europe

Crumbling cliffs in the landslide landscape of the Quiraing, the famous hike and scenic attraction in the far north east of the island, Quiraing, Staffin, Skye, Inner Hebrides, Scotland, United Kingdom, Europe

Guests from the Lindblad Expedition ship National Geographic Explorer kayaking in the Svalbard Archipelago, Norway, Arcitc, Europe

Guests from the Lindblad Expedition ship National Geographic Explorer at Hornsund (Horn Sound) in the Svalbard Archipelago, Norway, Arctic, Europe

Guests from the Lindblad Expedition ship National Geographic Explorer at Hornsund (Horn Sound) in the Svalbard Archipelago, Norway, Arctic, Europe

Guest from the Lindblad Expedition ship National Geographic Explorer photographing soda straw ice in the Svalbard Archipelago, Norway, Arctic, Europe

The Lindblad Expedition ship National Geographic Explorer at Austfonna in the Svalbard Archipelago, Norway, Arctic, Europe

The Lindblad Expedition ship National Geographic Explorer at Austfonna in the Svalbard Archipelago, Norway, Arctic, Europe

Southern giant petrel (Macronectes giganteus) cleaning itself on the water, South Georgia, Southern Ocean, Polar Regions

Ruined cells of penal colony on Ile Saint-Joseph, Iles du Salut (Islands of Salvation), French Guiana, Overseas department and region of France, French Guiana, South America

Aerial of Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Hiking trails around Seven Rila Lakes, Bulgaria, Europe

Cruise ship on a Pier in Ushuaia, Tierra del Fuego, Argentina, South America

Four-wheel drive jeep booged down while crossing a river, teamwork, Botswana, Africa

A backpacker observes the midnight sun peeking through the clouds from an unnamed fork of the Atigun River still partially covered in aufeis (sheet-like ice formations) in a remote valley of the Brooks Range, Alaska, United States of America

A young couple standing in front of a waterfall on private land on the island of Kauai, Kauai, Hawaii, United States of America