Beagle Gulf is a
gulf
A gulf is a large inlet from an ocean or their seas into a landmass, larger and typically (though not always) with a narrower opening than a bay (geography), bay. The term was used traditionally for large, highly indented navigable bodies of s ...
in the
Northern Territory
The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...
of
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
which opens on its west side to the
Timor Sea
The Timor Sea (, , or ) is a relatively shallow sea in the Indian Ocean bounded to the north by the island of Timor with Timor-Leste to the north, Indonesia to the northwest, Arafura Sea to the east, and to the south by Australia. The Sunda Tr ...
. The gulf is bounded to the south by the mainland and to the north by
Bathurst and
Melville Islands. It is connected to
Van Diemen Gulf
Van Diemen Gulf is a gulf in the Northern Territory of Australia. It connects to the Timor Sea in the north via Dundas Strait. Most of its area is also gazetted as a locality with the name Van Diemen Gulf. History
The gulf was named after th ...
in the east by
. Its south coast includes the natural harbours of
Darwin and
Bynoe. It is approximately 100 km long and 50 km wide. It surrounds the
Quail Island Group.
Name

Beagle Gulf was named after the ship
HMS ''Beagle'', on which
Charles Darwin
Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English Natural history#Before 1900, naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all speci ...
and
Robert Fitzroy
Vice-Admiral Robert FitzRoy (5 July 1805 – 30 April 1865) was an English officer of the Royal Navy, politician and scientist who served as the second governor of New Zealand between 1843 and 1845. He achieved lasting fame as the captain of ...
sailed around parts of Australia. The ''Cambridge Dictionary of Australian Places'' incorrectly states that "it was named in 1836 by Robert Fitzroy, commander of HMS Beagle, after his ship. The Beagle charted the area with Charles Darwin aboard as naturalist." However, Darwin and Fitzroy sailed in 1836 from
King George's Sound
King George Sound ( Mineng ) is a sound on the south coast of Western Australia. Named King George the Third's Sound in 1791, it was referred to as King George's Sound from 1805. The name "King George Sound" gradually came into use from about ...
(
Western Australia
Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...
) directly to the
Cocos-Keeling Islands, at the south coast of
Java
Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...
, and from there to
Cape Town
Cape Town is the legislature, legislative capital city, capital of South Africa. It is the country's oldest city and the seat of the Parliament of South Africa. Cape Town is the country's List of municipalities in South Africa, second-largest ...
and back to
England
England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
. They stayed away from Beagle Gulf by 3000 sea miles and did not know of its existence. The gulf was actually named by Captain
John Clements Wickham
John Clements Wickham (21 November 17986 January 1864) was a Scotland, Scottish explorer, naval officer, magistrate and administrator. He was first lieutenant on during its Second voyage of HMS Beagle, second survey mission, 1831–1836, un ...
, commanding HMS Beagle during its survey of northern Australia in 1837-1838, at the beginning of her third and last long voyage.
Protection
In 1991 the Northern Territory Government proposed the formation of the Beagle Gulf Marine Park. The proposed Marine Park has a significant commercial, recreational conservation value. Zoning plans enable the broadest possible use of marine parks whilst providing for the protection and conservation of significant ecological, scientific, historical, cultural and scenic sites.
[N Smit, R Billyard and L Ferns: ]
Beagle Gulf Benthic Survey: Characterisation of soft substrates.
'' Technical Report No. 66 (2000), Parks and Wildlife Commission of the Northern Territory.
Administrative status
On 4 April 2007, most of the area occupied by the Beagle Gulf was gazetted by the Northern Territory Government as a locality with the name, Beagle Gulf. The locality has not been added to any existing local government area and is considered to be part of the Northern Territory's unincorporated areas.
References
{{List of Australian seas
Gulfs of Australia
Bodies of water of the Northern Territory
Coastline of the Northern Territory
Timor Sea