Malta is an archipelago in the central Mediterranean Sea (in its eastern basin), some 93 km south of the Italian island of Sicily across the Malta Channel; east of Tunisia and north of Libya in Africa. Only the three largest islands Malta Island (Malta), Gozo (Għawdex), and Comino (Kemmuna) are inhabited. The smaller islands, such as Filfla, Cominotto and the Islands of St. Paul are uninhabited. Numerous bays along the indented coastline of the islands provide good harbours. The archipelago itself lies on the edge of the African tectonic plate, as it borders with the Eurasian plate. The landscape is characterised by low hills with terraced fields. The highest point is at Ta' Dmejrek on Malta Island at 253 metres (830 ft) near Dingli. Although there are some small rivers at times of high rainfall, there are no permanent rivers or lakes on Malta. However, some watercourses are found around the island that have fresh water running all year round. Such places are Baħrija, l-Intaħleb and San Martin. Running water in Gozo is found at Lunzjata Valley.