A shoal in the eastern Pacific Ocean.
Podesta is a phantom island reported at 32°14′S 89°08′W Coordinates: 32°14′S 89°08′W by the Italian Captain Pinocchio of the vessel Barone Podestà (Hereward Carrington, Carrington Collection, page 21) in 1879 claiming it to be just over a kilometre in circumference located 1390 km due west of El Quisco, Chile. It was originally located 900 miles west of Chile’s coast. The island was charted falsely until 1935, when it was removed from charts (marked “Existence Doubtful” by Defense Mapping Agency’s 1975 Operation Navigational Chart R-22). The island has not been found since.
An island near Easter Island was sighted in 1912 but was likewise never seen again. Sarah Ann Island northwest of Easter Island was another island also removed from naval charts when a search in 1932 failed to find it.
A nonexistent island in Lake Superior referenced in the 1783 Treaty of Paris.
North of Zemlya Frantsa-Iosifa, named after August Heinrich Petermann.
In 1683, Ambrose Cowley reported an unknown island where he thought the Falklands were, but his location was 4 degrees to the north of the Falkland Islands. While it is possible that he made a mistake in seeing a nonexistent island, it is more likely he saw one of the Falkland Islands and made a 4-degree error in his location.
An oceanic bank 400 feet (120 metres) deep off the west coast of Cape Horn, suggested as the remains of Elizabeth Island: However a 1956 search of the area turned up no shallow areas in the reported location.
A group of islands between Emerald Island and Dougherty Island, both of which are nonexistent. Probably a group of icebergs together.
Unknown odd island near Antarctica, which captain Benjamin Morrell of the ship Wasp saw while traveling north from Antarctica. He thought it to be the Antarctic Peninsula (then called New South Greenland), but his reported location during the voyage, while perfectly copying the expected path for traveling up the peninsula, was over 310 miles (500 kilometres) to the east and 60 miles (97 kilometres) to the north of the actual position of the Antarctic Peninsula, suggesting either a huge miscalculation in location or sightings of icebergs and fog, typical of phantom islands in the Antarctic Circle.
An island near the coast of Africa, roughly 1,000 kilometres (620 miles) east-northeast of Ascension Island and possibly confused with the same latitude Annobón Island.
Another nonexistent reef in the Line Islands (in fact Line Islands are more than 2,000 miles (3,200 kilometres) away), slightly to the southwest-west of the phantom island, Jupiter Reef. It is a setting for Jules Verne’s book In Search of the Castaways.