The Montebello Island Marine Park (area 58,331 ha) is located off the northwest coast of Western Australia, about 1,600 km north of Perth,[2] and 120 km west of Dampier.

[2] Close to the marine park is one of the most important oil and gas extraction zones in Australia, the Gorgon gas field, and it is also one of the most important breeding and nesting sites for sea turtles.

[4] There are two large contiguous protected areas: Barrow Island Marine Park (4169 hectares) and Barrow Island Marine Management Area (114,693 hectares).

[2] in 1952 and 1956, British-Australian atomic tests took place on/near Alpha and Tremouille Islands in the Montebello group.

[2] Nature tourism with diving, snorkelling, wildlife observation and water sports is also important.