Rotamah Island Bird Observatory was established in 1979 on Rotamah Island in the Gippsland Lakes

Gippsland Lakes

The Gippsland Lakes are a network of lakes, marshes and lagoons in east Gippsland, Victoria, Australia covering an area of about 600 km2. The largest of the lakes are Lake Wellington , Lake King and Lake Victoria. They are fed by the Avon, Thomson, Latrobe, Mitchell, Nicholson and Tambo...

 National Park

National park

A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or...

 in eastern Victoria, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, by Birds Australia

Royal Australasian Ornithologists Union

The Royal Australasian Ornithologists Union, also known as Birds Australia, was founded in 1901 to promote the study and conservation of the native bird species of Australia and adjacent regions. This makes it Australia's oldest national birding association. It is also Australia's largest...

 as Australia's second bird observatory, in order to provide a base for the study and enjoyment of the birds of the area. Rotamah Island had previously been a farming property, and the observatory was established in 'Overstrand', the homestead built in 1908. In 1985 the observatory was visited by Prince Charles

Charles, Prince of Wales

Prince Charles, Prince of Wales is the heir apparent and eldest son of Queen Elizabeth II and Prince Philip, Duke of Edinburgh. Since 1958 his major title has been His Royal Highness The Prince of Wales. In Scotland he is additionally known as The Duke of Rothesay...

 and Diana, Princess of Wales

Diana, Princess of Wales

Diana, Princess of Wales was the first wife of Charles, Prince of Wales, whom she married on 29 July 1981, and an international charity and fundraising figure, as well as a preeminent celebrity of the late 20th century...

.

The natural vegetation of Rotamah Island is eucalypt

Eucalypt

Eucalypts are woody plants belonging to three closely related genera:Eucalyptus, Corymbia and Angophora.In 1995 new evidence, largely genetic, indicated that some prominent Eucalyptus species were actually more closely related to Angophora than to the other eucalypts; they were split off into the...

 woodland

Woodland

Ecologically, a woodland is a low-density forest forming open habitats with plenty of sunlight and limited shade. Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of...

. There is also a causeway linking the island to Ninety Mile Beach

Ninety Mile Beach, Victoria

The Ninety Mile Beach is a sandy stretch of south-eastern coastline of Victoria, Australia along the Gippsland Lakes region of East Gippsland on Bass Strait. The beach is just over long running northeastward from a spit near Port Albert to the man-made channel at Lakes Entrance...

. These factors give visitors easy access to both freshwater and marine habitats. There is a small population of the introduced Hog Deer

Hog Deer

The Hog Deer is a small deer whose habitat ranges from Pakistan, through northern India, to mainland southeast Asia...

 on the island.

In 2001 negotiations between Birds Australia and Parks Victoria

Parks Victoria

-Department:Parks Victoria was established in December 1996 as a statutory authority, reporting to the Minister for Environment and Climate Change. The Parks Victoria Act 1998 makes Parks Victoria responsible for managing national parks, reserves and other land under the control of the state,...

, on renewal of the lease to the observatory, broke down and Birds Australia's association with Rotamah Island ended.