Malta are uninhabited. The islands of the archipelago lie on the Malta plateau, a shallow shelf formed from the high points of a land bridge between Sicily and North Africa that became isolated as sea levels rose after the last Ice Age. The archipelago is therefore situated in the zone between the Eurasian and African tectonic plates. Malta was considered an island of North Africa for centuries. Numerous bays along the indented coastline of the islands provide good harbours. The landscape consists of low hills with terraced fields. The highest point in Malta is Ta' Dmejrek, at , near Dingli. Although
North Island (Houtman Abrolhos) "Northwest Hill". On the eastern side is a seasonally inhabited permanent fishers' camp. There is an unnamed lighthouse on the western side, a trig point on the eastern side, and a gravel airstrip near the centre. The island is surrounded by a coral reef flat. This extends about km (1 mi) to the west of the island, and over 3 km (2 mi) to the north and south, but the reef margin lies quite close to the island on the eastern side. Most of the reef is not navigable, but a passage through the reef just north of the island