Description
A 2.5-hour charter flight from Patagonia. Seven full days in Antarctica. And on every departure, a push south toward the Antarctic Circle at 66°33’S: into sea ice, locked bergs, and the part of the continent most Antarctic vessels never reach.
With 36 guests, five Senior Polar Guides, and four Zodiacs in the water at once, all guests reach the Peninsula together, with the time and space to go further.
First navigated by Captain James Cook in 1773, this far-south route is still only attempted by a small number of vessels, and on our micro-ship Expedition Micro Cruise, your access is rare and intimate.
We’ll celebrate the moment aboard the ship before venturing into seldom-seen areas like The Gullet, Lallemand Fjord, and Detaille Island, where Adelie penguins tend chicks, elusive Ross seals may appear, and humpback whales bubble-net feed in krill-rich waters.
Enter a realm few have reached and join an elite circle of Antarctic explorers.
Six reasons to cross the Antarctic Circle with Secret Atlas
Reach 66°33’S at 36-guest scale. The smallest scheduled expedition vessel currently pushing for the Antarctic Circle. Everyone lands together, in a single Zodiac deployment, at every site.
Skip the Drake Passage. A two-hour direct flight from Puerto Natales to King George Island in the South Shetlands replaces two days of open-ocean crossing in each direction.
Seven full days on the ice. More time on the Peninsula than a traditional sail-cruise, without the Drake.
A push for the Circle on every departure. Weather and ice permitting, the captain and expedition team commit to reaching 66°33’S, not just attempting it.
Named landing sites few travellers ever reach. Crystal Sound, Marguerite Bay, Stonington Island, Detaille Island, and the narrow passages of The Gullet, on the same voyage as the classic Peninsula sites.
A gateway in Puerto Natales. At the foot of Torres del Paine, with an optional five-day Patagonian extension available.
Journey to the edge where ice and wildlife converge in pristine wilderness.
The fly cruise format eliminates the Drake Passage crossing in both directions maximising your time where it matters most. More time exploring the White Continent instead of spending days at sea increases opportunities for Zodiac cruises, shore landings, and wildlife encounters.
Crossing the Antarctic Circle is never guaranteed and always depends on ice and weather conditions, every Secret Atlas Expedition Micro Cruise is designed to make the attempt, giving you the best possible chance to venture farther south.
The season shapes everything. December and January bring the Peninsula at its most active: perpetual twilight, penguin colonies in full nesting season, humpback whales arriving in increasing numbers. Whether you are here for Christmas, New Year, or the height of the Antarctic summer, the expedition follows the same route, the same ambition, and the same intention to push as far south as conditions allow.
In this frozen, awakening world, nature leads — and we follow, quietly and respectfully.





