The Sahul Shelf (pron.: /səˈhuːl/) is part of the continental shelf of the Australian continent and lies off the coast of mainland Australia. The Sahul Shelf proper stretches northwest from Australia much of the way under the Timor Sea towards Timor, ending where the seabed begins descending into the Timor Trough. Another part of the Sahul Shelf is known also as the Arafura Shelf and runs all the way from the northern coast of Australia under the Arafura Sea to New Guinea. The Aru Islands rise from the Arafura Shelf. The Sahul Shelf is sometimes taken to also include the Rowley Shelf which runs out under the Indian Ocean from the northwest coast of Australia as far south as North West Cape.