A sand island is an

island An island or isle is a piece of subcontinental land completely surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be ...

that is largely made of

sand Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a soil texture, textur ...

. The largest sand island in the world is

Fraser Island Fraser Island ( Butchulla: ) is a World Heritage-listed island along the south-eastern coast in the Wide Bay–Burnett region, Queensland, Australia. The island is approximately north of the state capital, Brisbane, and is within the Fra ...

, Australia. Other examples of large sand islands are Moreton, North Stradbroke and Bribie Islands which lie south of Fraser Island off the east coast of Brisbane, Australia.

References

Landforms {{topography-stub