Part of The Antarctic & Southern Ocean
- Where
- Cape Horn to the
South Shetland Islands - Coordinates
- 58.0000° S
65.0000° W - Biome
- Open Southern Ocean
- Width
- c. 800 km, up to 4,500 m deep
- Crossing
- 36–48 hours each way
- Best crossed
- November–March
The short answer
The Drake Passage is the stretch of open water between Cape Horn at the southern tip of South America and the South Shetland Islands off the Antarctic Peninsula — roughly 800 kilometres wide and up to 4,500 metres deep. It is the shortest crossing between any continent and Antarctica, and by wide agreement the roughest body of water on the planet. Around 100,000 travellers cross it each year, almost all departing from Ushuaia, Argentina, on a passage taking 36 to 48 hours.
Why it's worth knowing
Every person who reaches the Antarctic Peninsula by ship crosses the Drake, and almost nobody writes about it as a destination. It is treated as the toll — two days to be endured before Antarctica begins.
That is a mistake, because the Drake is the reason Antarctica is Antarctica. Around 32 million years ago the passage opened as South America and Antarctica separated. Water could suddenly circulate all the way around the southern continent for the first time, and the Antarctic Circumpolar Current was born — a moat of moving water that cut Antarctica off from the warmth of the north and let it freeze. The continent's ice sheet exists in significant part because this gap opened.
The field notes
Why it is so rough
Three things compound. The Antarctic Circumpolar Current is the largest ocean current on Earth, moving on the order of 100 to 150 million cubic metres of water per second — and here it squeezes through its narrowest gap.
Second, there is no land. At these latitudes the wind can travel the entire circumference of the planet without meeting a continent, which gives it unlimited fetch to build waves. The old sailing names for these latitude bands say it plainly: the roaring forties, the furious fifties, the screaming sixties.
Third, this is where the Atlantic, Pacific and Southern Oceans meet, and Pacific cyclones sweep east across the passage. Swells of 10 metres are documented and considerably larger has been recorded. Modern expedition ships are ice-strengthened and stabilised, and captains still wait in the Beagle Channel for a forecast they like.
Drake Lake, Drake Shake
The passage has two moods and the crew will name them for you within an hour of leaving. The Drake Shake is the one in the reputation: portholes sealed on the lower decks, sick bags tucked behind every handrail, a ship moving in three axes at once. The Drake Lake is glassy water, albatrosses on the wind, and a queue at breakfast.
Which one you get is weather, not season, and there is no reliable way to buy your way out of it. It is the last genuinely unmanaged experience in a heavily managed itinerary.
The invisible border
Somewhere in the middle you cross the Antarctic Convergence, also called the Polar Front — the boundary where cold Antarctic surface water meets warmer subantarctic water and sinks beneath it. It is not marked, it moves, and it is unmistakable anyway: the air temperature drops, mist often forms on the sea surface, and the birds change.
It is a real biological border. The upwelling of nutrients along the convergence feeds phytoplankton, which feeds krill, which feeds everything else. Ecologists treat it as the northern edge of the Antarctic realm. You cross it in a few hours, usually asleep.
The difference between two words. Ask anyone who has been and they will tell you within a sentence whether they got the Lake or the Shake — a glassy two days with albatrosses hanging off the stern rail, or forty-eight hours of a ship rolling hard enough that the crew tapes down the crockery. It is the same crossing. Nobody who has done it forgets which one they got.
Getting there
Ushuaia, Argentina, is the departure point for the overwhelming majority of Antarctic voyages, reached by air from Buenos Aires. Ships leave through the Beagle Channel and are in open water within hours. The season runs November to March.
Fly-cruise options exist that skip the passage by flying from Punta Arenas to King George Island — faster, more expensive, and weather-dependent in its own way. Whether skipping it is a gain depends on your view of what you came for. Choose an IAATO-member operator: membership signals adherence to the visitor guidelines that keep Antarctic tourism tolerable.
Common questions
What is the Drake Passage?
The Drake Passage is the body of water between Cape Horn at the southern tip of South America and the South Shetland Islands off Antarctica, roughly 800 kilometres wide and up to 4,500 metres deep. It is the shortest crossing between any continent and Antarctica and the main route for Antarctic expedition ships.
Why is the Drake Passage so rough?
Three factors combine. The Antarctic Circumpolar Current, the largest ocean current on Earth, squeezes through its narrowest gap here. There is no landmass at these latitudes to break the wind, so waves build with unlimited fetch. And the Atlantic, Pacific and Southern Oceans meet in the passage, with Pacific cyclones sweeping across it.
How long does it take to cross the Drake Passage?
Crossing the Drake Passage takes roughly 36 to 48 hours each way by expedition ship, with most voyages departing from Ushuaia, Argentina. Around 100,000 travellers make the crossing each year during the November to March season.
What is the Drake Lake and the Drake Shake?
The Drake Lake and the Drake Shake are the informal names for the passage's two moods. The Drake Lake is a calm, glassy crossing; the Drake Shake is the rough one, with heavy swell and a ship rolling hard. Which one a traveller gets depends on weather rather than season, and cannot be predicted far in advance.
What is the Antarctic Convergence?
The Antarctic Convergence, also called the Polar Front, is the boundary where cold Antarctic surface water meets warmer subantarctic water and sinks beneath it. Ships crossing the Drake Passage pass through it, marked by a sharp drop in air temperature and often sea mist. It is a genuine biological boundary and the ecological northern edge of the Antarctic realm.
Can you get to Antarctica without crossing the Drake Passage?
Yes. Fly-cruise itineraries fly travellers from Punta Arenas, Chile, to an airstrip on King George Island in the South Shetlands, where they board a ship, skipping the passage in one or both directions. These options cost more and remain dependent on flying weather.
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