The Houtman Abrolhos are a chain of 122 islands and coral reefs in the Indian Ocean off Australia’s west coast, about 80 kilometers west of Geraldton, Western Australia. It is the Indian Ocean’s southernmost true coral reef and one of the world’s highest-latitude reef systems. It is one of the most important seabird breeding grounds in the world, as well as the hub of Western Australia’s largest single-species fishery, the western rock lobster fishery. It has a tiny seasonal population of fisherman, and a limited number of tourists are allowed for day trips, but the majority of the land is off limits as conservation habitat. It is well known for being the location of countless shipwrecks, the most famous of which were the Dutch ships Batavia and Zeewijk.