
Adélie penguins scurry across the fast ice in Antarctica in front of the National Geographic Explorer.
Photo by: Michael S. Nolan

King penguins line the beach as a Zodiac pulls up for a wet landing at St. Andrew's Bay, South Georgia Island.
Photo by: Ralph Lee Hopkins

A never-ending sea of king penguins in South Georgia.
Photo by: Andrew Studer

A gentoo penguin spotted with a newly hatched chick at Brown Bluff, Antarctica.
Photo by: Jared Funderburk

A Galápagos penguin, calling from the shore of the rocky bay.
Photo by: Ramiro Adrian

South of Snow Hill Island, emperor penguins from the only colony known in this section of Antarctica.
Photo By: Santiago Imberti

Antarctica's Barrientos Island with colonies of chinstrap and gentoo penguins uphill.
Photo by: Carl Erik Kilander

A macaroni penguin shows off its colors in Cooper Bay, South Georgia Island.
Photo by: Steve Morello

A Galápagos penguin—one of the world's smallest penguins—sunbathes with sea lions on lava rocks along the shore.
Photo by: Javier Cando

King penguins along the shoreline of St. Andrew’s Bay, South Georgia’s largest colony.
Photo by: Eric Guth

A Galápagos penguin striking a pose in Tagus Cove, Isabela Island.
Photo by: Christian Saa

King penguins resting in the morning sun.
Photo by: Jessica Farrer

Macaroni penguin in Fortuna Bay, South Georgia
Photo by: Carl Erik Kilander

A king penguin stands on a bluff below the dramatic peaks of St. Andrews Bay on South Georgia.
Photo by: David Cothran

Two gentoo penguins touching beaks in a snowstorm on Cuverville Island, Antarctica.
Photo by: Steve Morello

A gentoo penguin incubating eggs buried under the snow at Jougla Point, Antarctica.
Photo by: Jessica Farrer

An encounter with a curious Galápagos penguin during our snorkel at Sombrero Chino.
Photo by: Gianna Haro

A gentoo penguin and its young at Brown Bluff, Antarctica.
Photo by: Karen Velas

Galápagos penguin spotted just few feet away from a Zodiac.
Photo by: Carlos Romero