Point Nemo sits roughly 2,688 kilometers (about 1,670 miles) from the nearest land in any direction, making it the most remote spot in the entire ocean. Formally called the oceanic pole of inaccessibility, it lies in the South Pacific at coordinates 48°52.6′S, 123°23.6′W, a stretch of water so empty that the closest humans are sometimes the astronauts aboard the International Space Station as it passes overhead. The distance figure sounds abstract until you start looking at what surrounds it, which is effectively nothing for thousands of kilometers in every direction.
The Three Nearest Landmasses
Point Nemo is equidistant, to within a few kilometers, from three specks of land. To the north lies Ducie Island, one of the Pitcairn Islands and an uninhabited coral atoll roughly 1.7 kilometers across. To the northeast is Motu Nui, a tiny volcanic islet just off the coast of Easter Island, famous mostly as part of the historic birdman competition of the Rapa Nui people. To the south is Maher Island, a rock off the coast of Marie Byrd Land in Antarctica. None of these qualifies as a place anyone lives. Ducie Island supports nesting seabirds and little else. Motu Nui is a windswept rock barely above the waterline. Maher Island is Antarctic coastline in one of the least accessible corners of the continent.
The fact that three shorelines sit at nearly the same distance from one point is not a coincidence. Point Nemo was specifically defined as the location that maximizes the minimum distance to any coastline. If it were shifted even slightly toward one of those three islands, it would get closer to that island while getting farther from the other two, and it would no longer be the true pole of inaccessibility. The geometry locks Point Nemo in place like the center of a circle touching three edges.
How the Location Was Found
A Croatian-Canadian survey engineer named Hrvoje Lukatela identified Point Nemo in 1992 using a computational approach that accounted for the Earth’s actual shape. The Earth is not a perfect sphere; it bulges at the equator and is slightly flattened at the poles, a shape geodesists call an oblate ellipsoid. Calculating the true shortest path between two points on this surface requires algorithms more sophisticated than simple sphere-based trigonometry. Lukatela used an iterative method originally developed by Thaddeus Vincenty in 1975, which is precise to within a few millimeters on the standard Earth reference model used in GPS and modern mapping.1MATLAB Central File Exchange. Geodetic distance on WGS84 earth ellipsoid
Lukatela’s program iterated across millions of ocean points, checking how far each was from the nearest coastline and zeroing in on the one where that minimum distance was greatest. The result was the trio of equidistant islands and a center point deep in the South Pacific. The name “Point Nemo” was his choice, a reference to Captain Nemo from Jules Verne’s novels, the fictional submariner who wanted nothing to do with the surface world. It fits. If you wanted to be as far from civilization as the open ocean allows, this is where you would go.
Putting 2,688 Kilometers in Perspective
The distance from Point Nemo to the nearest land is greater than the distance from London to Moscow, or from Los Angeles to Chicago. If you somehow stood at Point Nemo on a boat and wanted to reach any shore, you would need to travel farther than the entire width of the Mediterranean Sea at its broadest. The region is so empty of land and shipping traffic that no commercial routes pass through it, and it sits outside the patrol range of any coast guard.
The often-repeated comparison about the International Space Station is not an exaggeration. The ISS orbits at an altitude of roughly 408 kilometers. When its orbital path carries it over the South Pacific, the astronauts aboard can be closer to Point Nemo than any human being standing on solid ground. The nearest permanently inhabited island, Easter Island proper, is over 2,600 kilometers away. The nearest significant population center, on the coast of New Zealand or Chile, is farther still. For brief windows during each orbital pass, the ISS crew genuinely is the closest group of people.
Inside the South Pacific Gyre
Point Nemo’s extreme remoteness is not just geographical; it sits within a vast rotating current system called the South Pacific Gyre. This is the largest oceanic province on Earth, a slowly spinning mass of water bounded by major ocean currents on all sides. The gyre’s circulation acts as a kind of barrier. Nutrient-rich waters from coastal upwelling zones and river outflows rarely penetrate into its interior, which means the central South Pacific is one of the most nutrient-starved stretches of ocean anywhere.2PubMed Central. Subseafloor sedimentary life in the South Pacific Gyre
Oceanographers have tracked changes in this gyre’s circulation over recent decades. Between 2005 and 2014, measurements from autonomous floats, satellite altimeters, and sea surface temperature data showed that the gyre’s circulation intensified, with roughly five additional sverdrups of northward flow across its eastern section at around 35°S latitude. A sverdrup is an enormous unit of water transport, equivalent to a million cubic meters per second, so even modest changes in the gyre’s strength reshape how water moves through the region.3Journal of Physical Oceanography. Multidecadal Change of the South Pacific Gyre Circulation Whether this intensification is driven by long-term climate trends or shorter-term variability is still being studied, but the result is that the interior of the gyre remains a biological desert, isolated from the productive margins of the ocean.
A Biological Desert on the Seafloor
The nutrient scarcity in the South Pacific Gyre has consequences that reach all the way to the ocean floor. Sediment at the bottom of this region accumulates at a rate of about 0.1 to 1 meter per million years, an almost imperceptibly slow process. Compare that to areas near continental shelves or river deltas, where sediment can build up hundreds or even thousands of times faster. The organisms living in and on this sediment have some of the lowest biomass and metabolic activity ever measured in marine environments.2PubMed Central. Subseafloor sedimentary life in the South Pacific Gyre
The water above the seafloor is similarly barren by ocean standards. Surface productivity, the amount of phytoplankton growth that forms the base of the marine food chain, is among the lowest in any ocean basin. Without phytoplankton, there is little to sustain zooplankton, fish, or the larger predators that follow them. Satellite chlorophyll measurements of the South Pacific Gyre’s interior consistently show it as one of the “bluest” and clearest patches of ocean on Earth, which sounds appealing until you realize that extreme clarity in the open ocean usually means extreme emptiness. The water is clear precisely because almost nothing is growing in it.
This biological poverty is part of what makes the region suitable for another purpose entirely.
The Spacecraft Cemetery
Space agencies have long used the waters around Point Nemo as a target zone for deorbiting spacecraft. When a satellite, space station, or cargo vehicle reaches the end of its operational life, controllers fire its thrusters to slow it down and guide its reentry toward this uninhabited patch of ocean. The thinking is straightforward: since no one lives there, no ships regularly transit there, and even the marine life is sparse, it is the safest place on the planet to drop a few tons of superheated debris from orbit.
The area has accumulated a substantial collection of deorbited hardware over the decades. Russia’s Mir space station was brought down near Point Nemo in 2001. Numerous Progress cargo vehicles, European Space Agency cargo craft, and decommissioned satellites have followed the same trajectory. NASA has stated that the International Space Station itself will eventually be deorbited into this region when it is retired, likely sometime in the early 2030s. The ISS, at roughly 420 metric tons, will be the largest object ever intentionally deorbited, and Point Nemo’s distance from any populated shore is the primary reason it was chosen as the target.
Not everything burns up on reentry. Denser components, particularly those made from titanium or stainless steel, can survive the heat of atmospheric reentry and reach the ocean surface. These fragments sink to the seafloor, where the extremely low sedimentation rate means they will sit essentially undisturbed for geological timescales. The debris field at the bottom of this region is likely the most concentrated deposit of space hardware anywhere on Earth, though no one has mounted a dedicated survey to map it.
Other Poles of Inaccessibility
Point Nemo is the oceanic pole of inaccessibility, but the concept applies to other surfaces too. Every continent has a point that is farthest from any ocean in all directions. The continental pole of inaccessibility in Asia, for instance, lies in northwestern China, far from any coastline. Antarctica’s pole of inaccessibility is deep in the interior of the ice sheet, farther from the coast than any other point on the continent. The Soviet Union established a temporary research station there in 1958, leaving behind a bust of Lenin that reportedly still pokes above the snow.
The Arctic has its own pole of inaccessibility, defined as the point on the Arctic Ocean farthest from any surrounding landmass. For decades, this was commonly placed at 84°03′N, 174°51′W. A 2013 study recalculated the position using higher-resolution coastline data and found the true location was at 85°48′N, 176°09′E, over 200 kilometers from where it had traditionally been marked.4Polar Record. Finding the Arctic pole of inaccessibility The shift happened because the older calculation relied on coarser maps of the Arctic coastline. As satellite imagery and GPS surveys improved the resolution of coastline data, the computed pole moved to account for small islands and promontories that earlier maps had missed or simplified.
This illustrates an underappreciated point about Point Nemo as well. Its coordinates depend on the resolution and accuracy of the coastline data fed into the calculation. If a previously unmapped rock or islet were discovered in the South Pacific, even a tiny one just barely above the waterline, it could shift Point Nemo’s computed position. In practice, the South Pacific has been surveyed well enough by satellite that a meaningful undiscovered island is unlikely, but the principle holds: poles of inaccessibility are artifacts of our best current coastline data, not fixed features of the Earth.
Why No One Goes There
You might expect that the sheer novelty of visiting the most remote point in the ocean would attract adventurers, and to a small degree it has. A handful of sailing expeditions have reached Point Nemo, and it appears occasionally as a waypoint in round-the-world yacht races whose routes pass through the Southern Ocean. But the region is actively hostile to small vessels. The Southern Ocean at these latitudes is notorious for powerful storms, enormous swells, and persistent westerly winds. Waves above six meters are common, and rescue, if something goes wrong, is impossibly far away.
Commercial shipping avoids the area entirely. The great circle routes between major ports in the Southern Hemisphere pass well to the north or along the coasts of South America, Australia, and New Zealand. There is no economic reason to route a cargo vessel through the empty heart of the South Pacific. Fishing vessels stay away too, because the nutrient-poor waters offer almost nothing to catch. The result is a stretch of ocean where years can pass without a single ship transiting through. Satellite tracking of vessel traffic, using automatic identification system transponders that large ships are required to carry, consistently shows the waters around Point Nemo as one of the blankest spots on the global maritime map.
The Sound Channel Beneath Point Nemo
One of the stranger scientific footnotes associated with this region involves a mysterious ultra-low-frequency sound detected in 1997 by underwater hydrophones operated by the U.S. National Oceanic and Atmospheric Administration. Dubbed “the Bloop,” it was one of the loudest underwater sounds ever recorded, originating from a location not far from Point Nemo’s coordinates. Early speculation ranged from undiscovered marine animals to geological activity. The sound’s profile was eventually matched to icequakes, large-scale fracture events in Antarctic ice shelves or icebergs. The Southern Ocean regularly produces such sounds as enormous slabs of ice crack and calve from the Antarctic ice sheet.
The fact that the Bloop was detectable at all from thousands of kilometers away is a testament to how efficiently sound travels through the deep ocean. At certain depths, temperature and pressure create a channel called the SOFAR channel that acts like a waveguide, allowing low-frequency sounds to propagate across entire ocean basins with little loss. The deep waters around Point Nemo sit within this channel, which is one reason NOAA’s hydrophone network, originally deployed during the Cold War to listen for submarine activity, picked up so many unusual sounds from this part of the Pacific. The region’s extreme quiet on the surface, with no engine noise from ships, no coastal wave noise, no biological chorus of reef life, makes it an unusually clear listening environment for deep-ocean acoustics.
Could Point Nemo Shift Over Time?
Sea level rise, tectonic plate movement, and volcanic activity all have the potential to alter coastlines, and therefore to shift the calculated position of Point Nemo. In practice, the timescales involved are very different. Tectonic movement reshapes ocean basins over millions of years and is irrelevant on any human planning horizon. Sea level rise is faster but would need to submerge entire islands, not just erode their beaches, to change which landmasses count as “nearest.” Ducie Island sits only a few meters above sea level, so a scenario in which rising waters reduce its exposed area or eventually submerge it is at least conceivable over the coming centuries. If Ducie Island disappeared beneath the waves, the nearest northern landmass to Point Nemo would change, and the computed pole would shift to a new location that maximizes distance from the remaining coastlines.
Volcanic activity in the South Pacific could work in the opposite direction. New volcanic islands do occasionally emerge from the ocean floor, particularly along the East Pacific Rise and in areas of hotspot volcanism. If a new island broke the surface anywhere within the South Pacific Gyre, it could pull Point Nemo toward or away from itself depending on its position relative to the three current anchor points. The ocean floor in this region is old and geologically quiet compared to active plate boundaries, so a new island appearing near Point Nemo is unlikely but not impossible on long timescales.