South of the Polar Circle, Antarctica

Remote polar wilderness, rare wildlife encounters, deep Antarctic Peninsula exploration

A colony of penguins huddles on a small ice floe surrounded by churning sea ice and dark blue water in Antarctica.

Overview

South of the Polar Circle, Antarctica Cruise Port

The region south of the Antarctic Circle—beyond latitude 66°33′ S—is a pristine and rarely visited part of the White Continent. Cruises that venture this far typically depart from Ushuaia, Argentina and cross the Drake Passage before navigating the Antarctic Peninsula. Once past the Circle, travelers enter a realm of towering icebergs, untouched snowfields, and wildlife colonies that thrive in isolation. These voyages are often referred to as “Crossing the Circle” expeditions and are designed for adventurous travelers seeking deeper immersion into Antarctica’s wildest frontiers.

Unlike standard Antarctic cruises, journeys south of the Circle include landings at remote sites such as Detaille Island, Marguerite Bay, and Crystal Sound. These areas offer exceptional opportunities to observe Weddell seals, humpback whales, and massive penguin rookeries. The region’s extreme conditions and limited accessibility mean fewer visitors, larger wildlife colonies, and a profound sense of solitude. Optional activities like kayaking, ice camping, and polar diving enhance the experience for those seeking true expedition-style adventure.

Top Things to Do in South of the Polar Circle, Antarctica

Visit Penguin Rookeries in Marguerite Bay

Observe thousands of Adélie and gentoo penguins in one of Antarctica’s most remote colonies.

Tip: Bring a long lens for photography—keep a respectful distance from nesting areas.

Zodiac Cruise Through Icebergs and Glacial Bays

Navigate narrow channels filled with towering ice formations and floating icebergs.

Tip: Dress in waterproof layers—splashing is common and temperatures are extreme.

Land on Detaille Island

Explore a historic British research station frozen in time since the 1950s.

Tip: Ask your guide about the station’s role in early Antarctic science.

Kayak Along Crystal Sound

Paddle through mirror-like waters surrounded by ice cliffs and marine life.

Tip: Book early—kayaking slots are limited and weather-dependent.

Spot Whales and Seals from the Deck

Watch for humpbacks, minkes, and Weddell seals in the nutrient-rich southern waters.

Tip: Early morning and late evening offer the best chances for sightings.

Participate in a Polar Plunge or Ice Camping

Take the ultimate challenge by diving into Antarctic waters or sleeping on the ice.

Tip: These activities are optional and require advance registration—check with your expedition leader.

Overview

South of the Polar Circle, Antarctica Cruise Port