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Bramble Cay
Native name:
Maizab Kaur
Bramble Cay (Landsat).png
TorresStraitIslandsMap with Bramble Cay.png
A map of the Torres Strait Islands in the waters of Torres Strait; Bramble Cay labeled in red in upper right
Location Torres Strait/Coral Sea
Coordinates 9°8'23"S, 143°52'54"E
Archipelago Torres Strait Islands
Major islands Bramble Cay, Black Rocks
Area 0.0362 km2 (0.0140 sq mi)
Length 0.251 km (0.156 mi)
Width 0.104 km (0.0646 mi)
Highest elevation 3 m (10 ft)
Highest point Mount Sikeran
State Queensland
Shire Shire of Torres
Island Region Eastern Islands
Population 7 (Tourists)
Pop. density 0 /km2 (0 /sq mi)
Ethnic groups Torres Strait Islanders
Additional information
Northernmost point of Australia
Green turtle breeding place

Bramble Cay, also called Maizab Kaur, Massaramcoer or Baramaki, and located at the northeastern edge of Australia and the Torres Strait Islands of Queensland and at the northern end of the Great Barrier Reef, is the northernmost point of land of Australia. It is 55 kilometres (34 mi) southeast of the mouth of the Fly River of Papua New Guinea.

History and features

A Man of War Cutter of 10 Guns, as Bramble, &c. Sailing by the wind, on the Larboard tack - Ensign and Pendant flying RMG PU6129f
European surveyors from HMS Bramble encountered the island in the 1840s.

The 3.62-hectare (8.9-acre) sand cay is predominately grassland, with 1.72 hectares (4.3 acres) covered in grasses.

The island was formed around a "basalt outcrop produced by Pleistocene volcanic activity and is composed of foraminiferal sand, compacted guano and, at its south-eastern end, a low phosphatic rock platform."

The name, Bramble Cay, derives from European surveyors on HMS Bramble, who came upon the island in April 1845.

In 1862, a mining lease was granted to the Anglo-Australian Guano Company and occasionally boats would come to mine the low grade phosphatic rock but due to its low quality, a permanent base wasn't created.

Bramble Cay in 2014
Bramble Cay, as seen from a boat in 2014.

After several shipwrecks, the first lighthouse, a 42 feet (13 m) pyramidal steel tower, was finally erected in 1924. It was demolished in 1954 and replaced by the present lighthouse, a 17 metres (56 ft) stainless steel tower, which was equipped with solar power on 6 January 1987. There are maintenance visits by vessels of the Australian Maritime Safety Authority every three to six months.

Bramble Cay is a breeding place for green turtles. The surrounding sea is rich with algae and algae-loving fish such as unicornfish, wrasse and trumpetfish. The island was also home to the Bramble Cay melomys, an isolated species of rodent that was the first mammal species to be declared extinct as a consequence of human-caused climate change.

About 5 kilometres (3.1 mi) to the southwest are the Black Rocks, also called Rebes, which rise one metre above the water. Three kilometres northeast, maps show submerged Nautilus Reef, the existence of which is doubtful.

Bramble Cay and the reefs and rocks close by are separated from other reefs and islets further south by Bligh Channel (Bligh Entrance). To the north and northwest, the Great North East Channel separates them from the coast of Papua New Guinea (Parama Island), which is 48 kilometres (30 mi) to the north.


Administratively, Bramble Cay is part of the Shire of Torres, specifically of the Eastern Islands Region. Although the island is located 25 kilometres (16 mi) north of the Seabed and Fisheries Jurisdiction Line between Australia and Papua New Guinea, the Australian sovereignty is undisputed and explicitly recognized by Papua New Guinea.

Customary tenure of Bramble Cay is held by the people of Darnley Island, the closest inhabited island, 45 kilometres (28 mi) south-southwest. Darnley Islanders travel to Bramble Cay to collect turtle and bird eggs during the nesting season, and also grant people of the neighboring Eastern Islands, Stephens Island and Murray Island, permission to collect.

The closest islet is uninhabited Underdown Islet, about 40 kilometres (25 mi) south. Papua New Guinea, specifically Parama Island, is 48 kilometres (30 mi) west-northwest. The Papua New Guinean city of Daru, the capital of Western Province, is some 70 kilometres (43 mi) west of Bramble Cay.

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