High Quality Content by WIKIPEDIA articles! Saibai Island (9°24 S 142°41 E / 9.4°S 142.683°E / -9.4; 142.683Coordinates: 9°24 S 142°41 E / 9.4°S 142.683°E / -9.4; 142.683) is one of the Torres Strait Islands in Australia, between the Australian mainland and the island of New Guinea. Saibai is a fairly large low-lying island only 4 km from the Papua New Guinea mainland. Close north is uninhabited Kauamag Island, separated from Saibai by a channel that is seven kilometers long, between 180 and 650 meters wide, and nearly blocked at its east end. The main village of Saibai, in the northwest, has a population of 171. The second village, Churum, in the southwest, numbers 128.