Australia’s 1,640-foot tall coral reef reveals a hidden ocean landscape taller than the Empire State Building
A detached reef discovered off Cape York in October 2020 rises more than 500 meters, with its summit about 40 meters below the surface. Sonar mapping revealed the structure before an underwater robot documented its habitats and marine life. Later records clarify its naming history, while current monitoring shows why discoveries must be distinguished from evidence of reef-wide recovery. A reef taller than many skyscrapers remained absent from detailed maps beneath the waters off northern Australia. Rising more than 500 meters, approximately 1,640 feet, it reaches toward the surface from a much deeper seabed. Its summit still lies about 40 meters underwater. The original expedition announcement described the first discovery of a tall detached reef in the region in more than 120 years. Its importance extended beyond height. Mapping exposed a substantial habitat in a comparatively poorly explored part of an internationally recognized marine ecosystem. A towering structure with a submerged summit The reef has a broad, blade-like form, with a base approximately 1.5 kilometers wide. Its height measures the rise of the entire structure, …









