The Arafura Marine Park, about 250 km (160 mi) north-east of Darwin, is Australia's most northern marine park, and is part of the North Network of Australian Marine Parks. The Aboriginal clans of Mandilarri-Ildugij, the Mangalara, the Murran, the Gadura-Minaga and the Ngaynjaharr whose sea country this is, share some of the responsibilities for the park.

The marine park covers 22,924 km (8,851 sq mi), and has depths from 5 metres (16 ft) to over 500 metres (1,600 ft).

The park is managed as an IUCN category VI park with three zones (see figure 1): a multiple use zone, a special purpose zone and a special purpose (trawl) zone. Important sections of the park (see figure 2) include the Money Shoal, which is an area of raised sea-bed, thought to have been produced by periods of coral reef growth during the Quaternary and differing sea levels.

Geomorphic features within the park.
Geomorphic feature	Area	Proportion of park (%)
Apron	2,591 km (1,000 sq mi)	11.3
Bank/Shoal	31 km (12 sq mi)	0.1
Canyon	6,856 km (2,647 sq mi)	30.0
Ridge	681 km (263 sq mi)	2.9
Shelf (plain)	22,390 km (8,640 sq mi)	50.0
Terrace	1,146 km (442 sq mi)	5.0

Money Shoal carries an abundant and varied assemblage of coral and organisms associated with coral reefs, an abundance of hard corals in the shallows, filter feeders on the shoal margins, while in the deeper areas of the sediment plains, there is little to no benthos.