The Houtman Abrolhos is a chain of 122 islands and associated coral reefs in the Indian Ocean off the west coast of Australia about 80 kilometres (50 mi) west of Geraldton, Western Australia. It is the southernmost true coral reef in the Indian Ocean, and one of the highest latitude reef systems in the world.
The Zeewijk was an 18th-century East Indiaman of the Dutch East India Company that was shipwrecked at the Houtman Abrolhos, off the coast of Western Australia, on 9 June 1727. The survivors built a second ship, the Sloepie, enabling 82 out of the initial crew of 208 to reach their initial destination of Batavia on 30 April 1728. Since the 19th century many objects have been found near the wreck site, which are now in the Western Australian Museum. The shipwreck itself was found in 1968 by divers.
The Wallabi Group is the northernmost group of islands in the Houtman Abrolhos off the western coast of Western Australia. it is 58 kilometres from the Australian mainland, and about 9 kilometres from the Easter Group.
The Pelsaert Group is the southernmost of the three groups of islands that make up the Houtman Abrolhos island chain. It consists of a number of islands, the largest of which are Gun Island, Middle Island, and Pelsaert Island. The group is named after Francisco Pelsaert a Dutch "opperkoopman", who stranded nearby with the VOC-ship "Batavia" in 1629. The group contains the most southerly true coral reefs in the Indian Ocean. The group is part of the Houtman Abrolhos Important Bird Area, identified as such by BirdLife International because of its importance for supporting large numbers of breeding seabirds.
North Island is the northernmost island in the Houtman Abrolhos, a coral reef archipelago in the Indian Ocean off the coast of Mid West Western Australia. Located about 14 km (9 mi) from the nearest island group, it is one of the largest islands in the Houtman Abrolhos, and one of the few to support dune systems. It has relatively diverse flora dominated by chenopod shrubs and fauna that includes the introduced tammar wallaby, around seven species of reptile, and about 15 resident bird species.
North East Reef is a reef in the Wallabi Group of the Houtman Abrolhos, in the Indian Ocean off the coast of Western Australia. Located at 28°25′13″S113°48′41″E, it takes its name from the fact that it is situated to the north-east of the main body of islands that makes up the Wallabi Group. The island is part of the Houtman Abrolhos Important Bird Area, identified as such by BirdLife International because of its importance for supporting large numbers of breeding seabirds.
Fish Point is a point in the north-eastern corner of East Wallabi Island in the Houtman Abrolhos island chain off the coast of Western Australia. It is located at 28°25′40″S113°44′34″E. It sits at the foot of Flag Hill, the highest peak on East Wallabi Island, and its western edge looks out onto Turtle Bay.
Gun Island is one of the larger islands in the Pelsaert Group of the Houtman Abrolhos, in the Indian Ocean off the west coast of Australia. It is nominally at 28°53′10″S113°51′35″E, about 4 km (2.5 mi) north and east of Half Moon Reef and is a flat limestone outcrop of about 800 by 420 metres in size. The island is part of the Houtman Abrolhos Important Bird Area, identified as such by BirdLife International because of its importance for supporting large numbers of breeding seabirds.
The Abrolhos painted buttonquail is a subspecies of the painted buttonquail endemic to the Houtman Abrolhos. It is common on North Island, and also occurs on other islands of the Wallabi Group, namely East Wallabi, West Wallabi, Seagull and Pigeon Islands.
Flag Hill is the highest hill on East Wallabi Island, and the highest point in the Houtman Abrolhos, an archipelago off the coast of Western Australia. It is located in the north-east of the island; its gazetted location is 28°26′7″S113°44′14″E, but in fact it is located somewhat east of there at about 28°26′02″S113°44′18″E. It is about 15 metres (50 ft) high.
Wallabi Limestone is the name given to the dense calcretised, limestone platform that underlies the Wallabi Group of the Houtman Abrolhos, an archipelago off the coast of Western Australia. This platform, which arises abruptly from a flat shelf, is about 40 metres thick, and is of marine biogenic origin, having originated as a coral reef. It reached its maximum size during the Eemian Stage, when sea levels were higher than at present. The subsequent fall in sea level resulted in the reef becoming emergent in places, thus forming the basement of the group's "central platform" islands, namely West Wallabi Island, East Wallabi Island and North Island.
Pigeon Island is a small island located need the middle of the Wallabi Group of the Houtman Abrolhos, an archipelago off the coast of Western Australia. It is almost entirely given over to western rock lobster fishers' camps, and as a result is far more disturbed than most other islands in the archipelago. A nearby island also seasonally populated by fishers is named Little Pigeon Island, hence Pigeon Island is sometimes referred to as "Big Pigeon Island".
Pigeon Island Anchorage is a passage through a reef that runs along the northwest wide of Pigeon Island in the Wallabi Group of the Houtman Abrolhos, an archipelago off the coast of Western Australia. Pigeon Island is seasonally populated by a great many Western Rock Lobster fishers, and Pigeon Island Anchorage represents the only safe approach to the island. It is thus heavily used as both a navigational passage and as an anchorage.
Wiebbe Hayes was a Dutch soldier known for his leading role in the suppression of Jeronimus Cornelisz's massacre of shipwreck survivors in 1629, after the merchant ship Batavia was wrecked in the Houtman Abrolhos, a chain of coral islands off the west coast of Australia.
Shag Rock is a small rocky island in the Wallabi Group of the Houtman Abrolhos.
West Wallabi Island is an island in the Wallabi Group of the Houtman Abrolhos, in the Indian Ocean off the west coast of mainland Australia.
Max Cramer OAM was an Australian scuba diver who became famous as the co-discoverer of the wreck of the Batavia on 4 June 1963. He was involved in a number of maritime archaeology projects pertaining to historic shipwrecks in Western Australia.
The Wiebbe Hayes Stone Fort on West Wallabi Island is the oldest surviving European building in Australia and was built in 1629 by survivors of the Batavia shipwreck and massacre. West Wallabi Island is 63 km (39 mi) from the coast of Western Australia.
Pelsaert Island is one of the islands of the Pelsaert Group, which is the southernmost of the three groups of islands that make up the Houtman Abrolhos island chain in Western Australia.
Beacon Island, also known as Batavia's Graveyard, is an island on the eastern side of the Wallabi Group at the northern end of the Houtman Abrolhos, in the Indian Ocean, off the coast of Western Australia.
