In 2021, researchers from the University of Copenhagen set out on an expedition along Greenland’s remote northern coast expecting to retrace steps taken decades earlier. What they discovered instead was something no one had anticipated: what appeared to be solid ground in one of Earth’s most isolated regions. The researchers documented their finding with photographs and coordinates, confident they had stumbled upon something genuinely new. They had no idea they were looking at an elaborate deception—one crafted not by human hands, but by ice and time.
The Unexpected Guest at the Top of the World
Arctic exploration has always been a pursuit of extremes. To find something unmapped in this age of satellites and global positioning systems felt almost impossible. Yet Morten Rasch, leading the geosciences team from Copenhagen, and his colleagues encountered a modest formation rising roughly three metres above the sea. It stretched only about thirty by sixty metres across, its surface blanketed in sediment, pebbles, and gravel—the typical composition of an Arctic landmass.
The team initially believed they were revisiting a location already known to science: Oodaaq, a gravel bank discovered in the 1970s. But when Rasch shared the photographs and coordinates on social media, responses came swiftly. Amateur Arctic enthusiasts and professional geographers immediately flagged a discrepancy. The mathematics didn’t align. If this was Oodaaq, the measurements were wrong. The location seemed different.
The team rechecked their data. Oodaaq, they realised, lay roughly 750 metres to the south-east. They had found something else entirely—or so they believed. The excitement was genuine. They proposed a name honouring the discovery: Qeqertaq Avannarleq, a Greenlandic phrase meaning “the northernmost island.” For researchers and Arctic enthusiasts alike, the implications seemed extraordinary. A new record holder for northernmost solid ground on Earth.
The Celebration of Discovery
The financial backer of the expedition, Swiss entrepreneur Christiane Leister, whose foundation had underwritten the costs, captured the spirit of the moment when speaking to journalists. The discovery echoed the experiences of historical explorers who believed they had reached one destination, only to realise they had stumbled upon something entirely different instead. The Arctic, it seemed, still held surprises.
The naming felt official, meaningful. A place previously unmarked on any map now had an identity. The researchers began planning follow-up visits, keen to document their find more thoroughly.
When Summer Brought Uncomfortable Truths
The follow-up expedition arrived in 2022 with more sophisticated equipment. Laser scanning technology and precision measurements replaced the initial observations. As René Forsberg, a specialist in geodesy and Earth observation from Denmark’s Technical University, analysed the data, an unsettling pattern emerged. The readings told a story the researchers hadn’t anticipated.
What they were examining wasn’t bedrock or gravel deposits compressed over millennia. The internal structure and composition pointed to something far more temporary: a grounded iceberg, its surface disguised by a thin covering of sediment and stone. The “island” was, in essence, frozen ocean masquerading as land.
Forsberg explained that similar discoveries throughout history had followed the same pattern. Explorers and researchers would identify what appeared to be new islands only to watch them vanish years later, melting away or drifting with changing ice conditions. Every one of these mysterious “northernmost islands” had proven to be the same phenomenon: flat icebergs, typically between twenty and thirty metres thick, their tops adorned with a layer of accumulated debris that made them resemble solid terrain.
The Real Northernmost Point
Kaffeklubben Island—a name delightfully translating to “Coffee Cup Island”—retained its title as Earth’s authentic northernmost land. It remained, for now, the only undisputed point where bedrock met the Arctic Ocean at such an extreme latitude.
The grounded icebergs that keep claiming the “northernmost” designation were likely born from floating glacier tongues anchored roughly forty to fifty kilometres west of Cape Morris Jesup, Greenland’s northernmost extremity. These glacier extensions periodically break free, carry sediment on their surfaces, and become trapped in shallower Arctic waters. There they ground themselves on the seafloor, waiting—sometimes for years—before warmer currents or shifting ice eventually claim them.
A Mystery Wrapped in Frozen Clarity
The true nature of these phantom islands remains partially enigmatic. Scientists understand their general origins but recognise that each one’s journey differs. The thick layers of protective sediment suggest movement across vast distances, accumulating material as they drift. Yet precisely when they will vanish remains unpredictable. A severe storm or a particularly warm summer can dissolve a decade of stability in weeks.
For Rasch and his team, the revelation carried practical consequences beyond scientific curiosity. Accurate Arctic mapping had become increasingly significant—not merely for geographical completeness, but for territorial claims and international governance. A map marked with islands that might vanish within years served no one. Knowing that these formations were temporary icebergs rather than permanent landmass allowed researchers to create documentation with genuine longevity.
The Arctic, in its way, had reminded the modern world that exploration wasn’t truly finished. It had simply learned to be more subtle in its surprises.
