Eldey

Eldey, meaning 'Fire Island,' is a dramatic basalt sea stack rising approximately 75 meters from the North Atlantic Ocean, located about 15 kilometers southwest of Reykjanestá on Iceland's Reykjanes Peninsula. This remote volcanic island hosts one of the world's largest Northern Gannet colonies, with around 16,000 breeding pairs representing approximately 70,000 individual birds at peak season. Protected as a nature reserve with strict access restrictions, Eldey holds profound historical significance as the site where the last known pair of Great Auks was killed in June 1844, marking the extinction of this remarkable flightless seabird. The island's sheer cliffs and flat summit provide ideal nesting conditions for seabirds while its isolation protects them from terrestrial predators.

Eldey's flat-topped summit supports one of the world's largest and most important Northern Gannet colonies, with approximately 16,000 breeding pairs creating a spectacular display of white plumage and synchronized flight patterns. Beyond the dominant gannets, the island's cliffs host thousands of Black-legged Kittiwakes, Common Guillemots, and other seabird species that nest in dense colonies on the rock ledges. The surrounding waters teem with fish that sustain these seabird populations, including sand eels, herring, and capelin that gannets capture through spectacular plunge-diving. Seals occasionally haul out on rocky platforms around the island's base, while various whale species including minke whales and harbor porpoises frequent the nutrient-rich waters offshore.

The harsh, salt-sprayed environment of Eldey supports only minimal vegetation adapted to extreme maritime conditions. Patches of scurvy grass, sea campion, and various salt-tolerant coastal plants cling to crevices and pockets of accumulated soil between the rocks. Seabird guano enriches the substrate, creating nitrogen-rich conditions that favor certain hardy species. Lichens colonize exposed rock surfaces, slowly breaking down the basalt and contributing to soil formation over centuries. The limited vegetation provides nesting material for some seabird species, though most birds nest directly on bare rock ledges. The flat summit where gannets concentrate is largely devoid of vegetation due to the dense nesting that covers virtually every available surface.

Eldey rises from the Mid-Atlantic Ridge, where the North American and Eurasian tectonic plates diverge at approximately 2 centimeters per year. The island is part of the Eldey volcanic system, which together with the now-submerged Geirfuglasker forms a 40-kilometer submarine volcanic complex on the Reykjanes Ridge. The rock composition consists primarily of basalt and hyaloclastite, volcanic materials formed when lava erupted underwater during submarine volcanic activity. The sheer cliffs result from wave erosion attacking the relatively soft volcanic rock, creating the dramatic vertical faces that provide ideal seabird nesting habitat. The area remains seismically active, with recent earthquake swarms including a magnitude 5.1 event in May 2025 demonstrating ongoing geological processes.

Eldey experiences a harsh oceanic climate with conditions dominated by strong winds, salt spray, and frequent storms sweeping across the open North Atlantic. Summer temperatures average between 8 and 12 degrees Celsius, while winter temperatures hover around freezing, rarely dropping far below zero due to the moderating influence of the ocean. The island is frequently shrouded in fog and mist, with annual precipitation estimated at 1,000-1,500 millimeters, though precise measurements are difficult in such an inaccessible location. Powerful Atlantic storms regularly batter the island with gale-force winds and massive waves that crash against the cliffs, making access hazardous except during calm weather windows. The breeding season from April through August coincides with relatively calmer conditions, though fog and sudden weather changes remain common.

Eldey's human history is tragically linked to the extinction of the Great Auk, a large flightless seabird that once numbered in the millions across North Atlantic islands. After volcanic activity destroyed the nearby Geirfuglasker breeding ground in 1830, surviving Great Auks relocated to Eldey, where they were discovered in 1835. Museums eager to obtain specimens for their collections commissioned hunters to collect birds and eggs, rapidly depleting the remaining population. On June 3, 1844, hunters Jón Brandsson and Sigurður Ísleifsson killed the last breeding pair of Great Auks on Eldey while a third man crushed the egg they were incubating, completing the species' extinction. This event has become a powerful symbol for conservation, reminding humanity of the consequences of unchecked exploitation.

Eldey received protected nature reserve status to preserve its internationally important seabird colonies and prevent the kind of exploitation that led to the Great Auk's extinction. Access to the island is strictly prohibited without special research permits, ensuring that the nesting birds are not disturbed by casual visitors. The Environment Agency of Iceland manages the reserve, with periodic scientific surveys monitoring gannet population trends and overall ecosystem health. Two webcams installed on the island allow the public to observe the gannet colony remotely without physical disturbance. The protection recognizes both the ecological significance of one of the world's largest gannet colonies and the historical importance of the site as a reminder of conservation failures.

Eldey cannot be visited by the public, as landing is prohibited to protect the nesting seabird colonies and the fragile island ecosystem. However, the island can be viewed from the Reykjanes Peninsula coastline on clear days, appearing as a distinctive rocky silhouette on the horizon about 15 kilometers offshore. Two webcams operated by Icelandic authorities provide live streaming views of the gannet colony, allowing virtual visitors to observe the birds' behavior throughout the breeding season. Several boat tours departing from the Reykjanes area offer offshore views of the island during calm weather, though landing remains forbidden. The Reykjanes Peninsula itself offers numerous attractions including geothermal areas, lighthouses, and coastal scenery, with Eldey visible as a dramatic backdrop from various vantage points.

As a strictly protected nature reserve, Eldey has no visitor facilities and public access is not permitted. The island is located approximately 15 kilometers offshore from Reykjanestá, the southwestern tip of Iceland's Reykjanes Peninsula. Viewing opportunities from land are limited but possible from elevated points along the Reykjanes coast on clear days. Occasional research expeditions require special permits from the Environment Agency, typically limited to population surveys and scientific monitoring. The webcams at eldey.is provide the best opportunity for most people to observe the gannet colony. The Reykjanes Peninsula is accessible via Route 41 from Reykjavík, approximately 40 kilometers distant, with various visitor facilities including the Reykjanesviti lighthouse and Gunnuhver geothermal area offering context for understanding the region's volcanic geology.

Conservation of Eldey focuses on maintaining the strict protection that has allowed the gannet colony to thrive while commemorating the Great Auk extinction as a conservation lesson. The prohibition on landing prevents disturbance to nesting birds and protects the fragile island ecosystem from invasive species and human trampling. Population monitoring tracks gannet numbers and reproductive success, with the colony currently healthy and stable at around 16,000 breeding pairs. Climate change poses potential threats through alterations to fish populations that seabirds depend upon, while ocean acidification may affect the marine food web. The remote webcam monitoring system demonstrates how technology can enable public engagement with wildlife while eliminating physical disturbance. Eldey's story continues to serve as a powerful reminder of humanity's responsibility to protect vulnerable species before it is too late.