Lexi Webster
Australia has a total of 8,222 islands within its maritime borders. The islands vary in size, with some being smaller than 1,000 square kilometres (390 sq mi) and others being much larger. While the mainland of Australia is not typically classified as an island, there has been debate among geographers as to whether it should be considered one due to being surrounded by water. Aside from the Australian mainland, there are several large islands close to the Australian mainland, such as K'gari, which is the largest sand island in the world, and Tasmania, which is the largest island in the group by area.
Explore related products
What You'll Learn
- Australia is the smallest continent and is surrounded by water
- Australia has 8,222 islands within its maritime borders
- K'gari, the world's largest sand island, is off the coast of Queensland
- Macquarie Island is one of Australia's most distant possessions
- Australia is sometimes defined as an island as well as a continent
Australia is the smallest continent and is surrounded by water
Australia is the smallest continent on Earth, covering around 3 million square miles (7.7 million square kilometres). It is nearly four times as large as Greenland, which is considered an island. However, the definition of a continent varies among geographers, and mainland Australia is sometimes defined as an island as well as a continent.
Australia is surrounded by water and has 8,222 islands within its maritime borders. The largest of these islands is Tasmania, with a land area of 64,519 square kilometres (24,911 square miles). Other large islands include Melville Island in the Northern Territory, Kangaroo Island in South Australia, and K'gari in Queensland, which is the largest sand island in the world.
K'gari, also known for its coloured sands, is located off the coast of southern Queensland and stretches over 123 kilometres in length, reaching 25 kilometres at its widest point. The island features diverse landscapes, including freshwater lakes, sand dunes, wetlands, crystal clear lakes, and dense rainforests. Macquarie Island, located in the Southern Ocean, is one of Australia's most distant possessions. It is the exposed crest of the undersea Macquarie Ridge, where the Indo-Australian tectonic plate meets the Pacific plate.
Australia's continental shelf, which covers around 2.5 million square kilometres, includes the Sahul Shelf and the Bass Strait. The continent primarily sits on the Indo-Australian Plate and does not have any active volcanic regions, a unique feature among the continents. The separation of the continent due to rising sea levels over thousands of years led to the formation of the mountainous islands of New Guinea and Tasmania.
Australia's Public Healthcare System: How Does It Work?
You may want to see also
Explore related products
Australia has 8,222 islands within its maritime borders
Australia has a total of 8,222 islands within its maritime borders. These islands are scattered across the Pacific, Indian, and Southern Oceans, as well as the Coral and Timor Seas.
The islands vary greatly in size, with some being much larger than others. The islands larger than 1,000 square kilometres include Tasmania, Melville Island, Kangaroo Island, Groote Eylandt, Bathurst Island, K'gari, Flinders Island, King Island, and Mornington Island. Tasmania, the largest of these islands, has a land area of 64,519 square kilometres. K'gari, also known as Fraser Island, is the largest sand island in the world and is famous for its coloured sands, freshwater lakes, sand dunes, wetlands, and dense rainforests. It is a World Heritage Site and home to the Great Sandy National Park.
Groote Eylandt, Australia's fourth-largest island, is an interesting case as its name is an archaic spelling of the Dutch words for "Big Island". Macquarie Island, on the other hand, is one of Australia's most distant possessions, located in the Southern Ocean. It is unique for its geological features, being the only place on Earth where rocks from the Earth's mantle are exposed above sea level.
Australia's islands are not only geographically diverse but also ecologically and culturally significant. They offer a range of landscapes, from sand dunes to rainforests, and provide habitats for many unique plant and animal species found nowhere else on Earth. These islands showcase the natural beauty and diversity of Australia's maritime borders.
Australian-Made Lollies: A Sweet Adventure
You may want to see also
Explore related products
K'gari, the world's largest sand island, is off the coast of Queensland
K'gari, also known as Fraser Island, is the world's largest sand island. It is located off the coast of Queensland, Australia, in the Coral and Timor Seas. The island is approximately 122 kilometres long and 22 kilometres wide, covering an area of 1,840 square kilometres. K'gari is a UNESCO World Heritage Site, inscribed in 1992, and is known for its diverse landscapes and natural beauty.
The island is characterised by its vast sand dunes, which have been forming for approximately 750,000 years. Unlike many other sand dunes, K'gari's dunes support abundant plant life due to the presence of naturally occurring mycorrhizal fungi in the sand, which release nutrients that can be absorbed by plants. The island is home to over 865 species of plants, including tall rainforests growing directly on the sand, eucalyptus woodlands, mangrove forests, wallum heathlands, and peat swamps.
K'gari also boasts a diverse range of animal life, including a small number of mammal species and a variety of birds, reptiles, and amphibians. The island is particularly known for its population of dingoes, which are protected from exposure to diseases carried by domestic dogs, which are banned from the island.
The island holds cultural significance as well, as it is part of the traditional lands of the Butchulla people, who named it "K'gari", meaning "paradise". European settlers arrived in 1847 and named the island Fraser Island after Captain James Fraser, whose ship, the Stirling Castle, was shipwrecked on the island in 1836.
Today, K'gari is a popular tourist destination, attracting up to 500,000 visitors each year. The island is managed by the Queensland Parks and Wildlife Service, and most of it is protected as part of the Great Sandy National Park.
John West Tuna: Australian-Made or Not?
You may want to see also
Explore related products
Macquarie Island is one of Australia's most distant possessions
Macquarie Island is a subantarctic island in the southwestern Pacific Ocean, approximately halfway between New Zealand and Antarctica. It has been governed as a part of Tasmania, Australia, since 1880. The island is located at a latitude of 54°30' South, longitude 158°57' East, and is actually 200 kilometres closer to the Antarctic continent than its parent state of Tasmania, which lies 1,500 kilometres northwest of the island. Covering 128 square kilometres, Macquarie Island is 34 kilometres long but is just five kilometres at its widest point.
The island was discovered by Frederick Hasselborough, an Australian, on 11 July 1810, while looking for new sealing grounds. Hasselborough claimed Macquarie Island for Britain and annexed it to the colony of New South Wales in 1810. The island was named for Colonel Lachlan Macquarie, Governor of New South Wales from 1810 to 1821.
In 1933, the Tasmanian Government declared Macquarie Island a wildlife sanctuary. The status was changed to a conservation area in 1971, and then in 1972, it was re-designated as a state reserve known as the Macquarie Island Wildlife Reserve. In 1978, the area of the state reserve was extended to the mean low-water mark, including the offshore islets, and it was formally named the Macquarie Island Nature Reserve.
Macquarie Island is the exposed crest of the undersea Macquarie Ridge, raised to its present position where the Indo-Australian tectonic plate meets the Pacific plate. It is the only place on Earth where rocks from the Earth's mantle are exposed above sea level. These unique exposures include excellent examples of pillow basalts and other extrusive rocks.
On 25 May 1948, the Australian National Antarctic Research Expeditions (ANARE) established its expedition headquarters on Macquarie Island. The base has been in continuous operation ever since, with a population of 20 to 40 people throughout the year.
Applying for a Carer's Pension: Australia's Guide
You may want to see also
Explore related products
Australia is sometimes defined as an island as well as a continent
Australia is recognised by the United Nations as one of the world's seven continents. It is the smallest, lowest, flattest, and second driest continent on Earth. The continent includes mainland Australia, Tasmania, the island of New Guinea, the Aru Islands, the Ashmore and Cartier Islands, and some other nearby islands.
Australia is sometimes referred to as an "island continent" because, as the country of Australia comprises most of the continent and is mostly on a single landmass, it is almost entirely surrounded by ocean.
However, most geographers consider islands and continents to be separate things. According to Britannica, an island is a mass of land that is both "entirely surrounded by water" and also "smaller than a continent". By that definition, Australia cannot be an island because it is already a continent.
The distinction between an island and a continent is not always clear, however, as there is no strict scientific definition of a continent. One criterion that makes practical sense is that of the continental shelf (combined with "sufficient size"). Using this criterion, Australia is its own continent, and Greenland, the world's largest island, is part of North America.
In addition to the geological distinction, there are also biological and anthropological distinctions between Australia and Greenland. A large percentage of Australia's plant and animal species are unique, whereas fewer of Greenland's species are unique. Aboriginal people are limited to Australia, while indigenous Greenlanders are part of a group of peoples (the Inuit) found throughout the Arctic, including parts of Canada, the United States, and Russia.
Corporal Punishment: Australia's Ban and Beyond
You may want to see also
Frequently asked questions
Australia is considered the smallest continent on Earth. However, because the definition of a continent varies between geographers, mainland Australia is sometimes defined as an island as well as a continent.
Australia has 8,222 islands within its maritime borders. The islands larger than 1,000 square kilometres include Tasmania, Melville Island, Kangaroo Island, Groote Eylandt, Bathurst Island, K'gari, Flinders Island, King Island, and Mornington Island.
K'gari, located off the coast of southern Queensland, is the largest sand island in the world. It is known for its coloured sands, freshwater lakes, sand dunes, wetlands, crystal-clear lakes, dense rainforests, and unique geological features. K'gari has a World Heritage listing and is home to the Great Sandy National Park.
![National Geographic Road Atlas 2026: Adventure Edition [United States, Canada, Mexico]](https://m.media-amazon.com/images/I/81rRihqWqgL._AC_UY218_.jpg)
![National Geographic Road Atlas 2026: Scenic Drives Edition [United States, Canada, Mexico]](https://m.media-amazon.com/images/I/814R4OsGtCL._AC_UY218_.jpg)
