Lady Elliot Island

Coral cay located in the Great Barrier Reef

Lady Elliot Island is the southernmost coral cay of the Great Barrier Reef, Australia. The island lies north east of Bundaberg and covers an area of approximately It is part of the Capricorn and Bunker Group of islands and is owned by the Commonwealth of Australia. The island is home to a small eco resort and an airstrip, which is serviced daily by flights from Bundaberg, Hervey Bay, Brisbane and the Gold Coast. Lady Elliot Island is located within the 'Green Zone' of the Great Barrier Reef Marine Park, which is the highest possible classification designated by the Great Barrier Reef Marine Park Authority. Marine National Park Green Zones protect the biodiversity within the Great Barrier Reef Marine Park by protecting important breeding and nursery areas such as seagrass beds, mangrove communities, deepwater shoals and reefs. The island is particularly renowned for its scuba diving and snorkelling, as its location far offshore at the southern end of the Great Barrier Reef results in excellent water clarity.

The island is a vegetated shingle cay, which is uncommon. Typically these type of cays are too narrow to retain fresh water or too mobile for vegetation to take hold. Pisonia grandis grows on the island.

The waters surrounding the island are particularly rich in sealife because of a total ban on fishing or taking anything from the surrounding waters. Manta rays are abundant, attracted to the plankton around the island. The speckled carpetshark is often observed in the waters around the island. It is the only known locality home to the Lady Elliot Shrimp Goby (Tomiyamichthys elliotensis) which was described in 2023.

The Great Barrier Reef is one of the most important sea turtle habitats in the world, with Lady Elliot Island being a key part of that habitat. Every year between November and March the green and loggerhead turtles lumber up the same beach on which they were born more than 50 years ago. These turtles nest on Lady Elliot Island up to nine times in a season, laying between 80 and 120 eggs per clutch. About eight to twelve weeks later, young hatchlings leave their nests and head towards the ocean (January to April).

Lady Elliot Island first appeared above sea level around 1500 BC as a coral rubble spit. It developed into a mature coral cay over the next 3,000 years. Lady Elliot had endured because bird droppings have hardened together with beach sediments into beachrock. The existence of concentric shingle ridges across the island provides evidence of its formation by progradation over several millennia as deposits were laid down during episodic storms. The industry petered out when there were no more sea cucumbers.

In 1816, the island was officially discovered and named by Captain Thomas Stewart aboard the vessel Lady Elliot. on the way to Sydney in 1816. The Lady Elliot was a 353 tonne vessel that was built in Bengal and registered in Calcutta, India. On the return journey from Sydney, it was wrecked on a reef south of Cardwell in North Queensland, and that reef is called Lady Elliot Reef. The ship was probably named after Anna Maria Elliot, the wife of Gilbert Elliot Murray Kynynmound, 1st Earl of Minto, a Scottish politician who was Governor General of India between 1807 and 1813. Anna Maria (later Lady Elliot) was the daughter of Sir George Amyand, 1st Baronet. An alternative story suggests that it was named after Margaret, wife of Gilbert's brother, Hugh Elliot, a diplomat and Governor of Madras from September 1814 to June 1820. However, Hugh Elliot's wife was not a "Lady", as he was a career diplomat, was not knighted and did not inherit any titles of nobility.

In 1863, Mr J. Askunas won tender from the Queensland Government to mine the island for guano for 300 pounds per annum for 10 years. The lease was transferred to Dr W. I. Crowther of Hobart on 23 August 1864. Dr Crowther mined the island until the end of 1873. The guano was mined by Chinese and Malay workers and sent to mainland Australia and New Zealand. Over this period virtually all the trees were removed, as well as 3 feet of top soil and guano. In 1874, the guano mining ceased, but the damage to the vegetation of the island was absolute. It was not until 1966 that a revegetation program was undertaken by lighthouse staff. Their efforts were quickly rewarded, with the island re emerging as a haven for all types of seabirds.

The first lighthouse to be built on the island was constructed in 1866. The Lady Elliot Island Eco Resort Management team is dedicated to the preservation of the natural environment of the Great Barrier Reef, with their goal to work in harmony with nature for the benefit of future generations. Lady Elliot Island Eco Resort has introduced a range of environmental best practice measures, including construction of a hybrid solar power station to reduce energy consumption and carbon emissions. Lady Elliot Island Eco Resort has also achieved the highest level of ECO Certification program 'ECO Certified – Advanced Ecotourism' with Ecotourism Australia. Tourist services to the island are provided by Seair Pacific.

Lady Elliot Island is inside the Great Barrier Reef Marine Park, which is maintained by the Great Barrier Reef Marine Park Authority. The island is also maintained by Lady Elliot Island Eco Resort.

Lady Elliot Island has a tropical savanna climate (Aw).