Thirteen days of rowing. Six people. Thousands of tonnes of water hurling against their boat in waves that rose like moving mountains. Explorer Fiann Paul and his team had chosen one of Earth’s most violent waterways to cross by rowboat in December 2019—a decision that would test the limits of human endurance against one of nature’s fiercest boundaries.
The Drake Passage sits like a liquid scar between the tip of South America and Antarctica, a 600-mile stretch of ocean where three seas converge and the wind never truly stops. Most people experience this place only through videos shared online: ships pitching at impossible angles, containers sliding across decks, tourists clinging to railings as the vessel pitches beneath them. But the passage is far more than a destination for viral moments. It is a place of contradictions—brutal and essential, dangerous and vital to the survival of our warming planet.
A Waterway Without Mercy
The Drake Passage earned its fearsome reputation through geography rather than myth. Unlike most ocean crossings, this stretch of water remains entirely unobstructed by land. From west to east, nothing interrupts the wind’s passage around the globe. The Antarctic Ocean, which encircles the frozen continent below, flows through this gap with such force that it creates some of the world’s strongest currents. Rogue waves—sudden, towering walls of water—have appeared with little warning, sometimes reaching heights beyond 20 metres. In 2022, such waves caused fatalities aboard vessels attempting the crossing.
The passage also sits atop a seismic zone, making earthquakes an additional hazard for those who venture through its waters.
When Fiann Paul described his rowboat expedition, he captured the experience with unflinching honesty. The short, rapid waves were the worst—they struck with a force that left no time to prepare. “Like walls,” he recalled. The cold penetrated every layer of clothing. The wetness never truly left the body. Thirteen days of this, day after day, until the team finally reached the Antarctic Peninsula and saw the electric blue of glacial ice beckoning them forward.
The Unintended Guardian
Yet this same passage—feared by mariners and treacherous to cross—plays an invisible role in protecting the entire planet. Physical oceanographers have discovered that the Drake Passage functions as a massive engine for carbon storage. The powerful currents that make it so dangerous sweep microscopic organisms called phytoplankton and other carbon-rich materials from the surface down into the ocean’s depths. There, far below where light penetrates, carbon remains trapped for centuries. The Southern Ocean as a whole removes roughly 600 million tonnes of carbon from the atmosphere annually—equivalent to about one-sixth of all emissions from human activity. The Drake Passage contributes significantly to this process.
Research suggests that conditions here may be especially efficient for this carbon sequestration. The irregular seabed and constant wind stress keep the water less stratified than in other regions, allowing organic matter to sink more readily into storage. In an era when the planet desperately needs carbon removal, the Drake Passage has become unexpectedly valuable.
Keeping the Continent Frozen
Climate scientists believe the Drake Passage has another crucial role: it acts as a barrier against warmth. Oceanographers note that when the passage opened tens of millions of years ago, after tectonic shifts separated South America from Antarctica, it fundamentally changed the climate of the southern hemisphere. Without a land bridge connecting the two continents, warm air from the north struggles to penetrate southward. The powerful currents maintain a sharp thermal boundary—one that ships crossing the passage experience viscerally. Travellers report that the transition is almost instantaneous. One moment they are in temperate waters; hours later, they are surrounded by ice.
This cooling effect matters enormously. Antarctica holds 11.5 million square miles of ice. If that ice melted, global sea levels would rise by more than 60 metres. The Drake Passage, by maintaining the cold that preserves Antarctica, is essentially protecting coastlines around the world.
A Place of Life
Beneath the violent surface, the passage sustains an ecosystem of remarkable richness. The same currents that make the crossing so hazardous transport nutrients across vast distances. These nutrients feed the smallest organisms—plankton—which in turn support larger creatures. Krill, tiny shrimp-like crustaceans, thrive in these waters. The largest whales on Earth journey here to feed on them. Penguins and dolphins move through these waters with a fluidity that contrasts sharply with the chaos above.
Fiann Paul’s rowing team witnessed this abundance firsthand. After thirteen days of struggle, as they approached Charles Point on the Antarctic Peninsula, they saw the wildlife that depends on the Drake Passage—penguins, dolphins, and whales moving through waters that, for all their danger, nurture life on an extraordinary scale. Some members of the expedition were moved to tears upon seeing the continent, not only from relief at surviving the crossing, but from the sheer beauty of the place they had fought to reach.
A Paradox of Nature
The Drake Passage embodies a paradox: the very ferocity that makes it one of the world’s most dangerous waterways is inseparable from its role as a guardian of planetary stability. For mariners, it remains a test of nerve and skill. For the planet, it functions as a silent engine, removing carbon, maintaining cold, and sustaining life. Most people will never cross it. Those who do rarely forget the experience.
