Tunis is located in north-eastern Tunisia on the Lake of Tunis, and is connected to the Mediterranean sea's Gulf of Tunis by a canal which terminates at the port of La Goulette / Halq al Wadi. The ancient city of Carthage is located just north of Tunis along the coastal part.
The city of Tunis is built on a hill slope down to the lake of Tunis. These hills contain the places, Notre-Dame de Tunis, Ras Tabia, La Rabta, La Kasbah, Montfleury and La Manoubia which altitudes beyond just 50 meters. The city is located at the crossroads of a narrow strip of land between Lake Tunis and S�joumi. The isthmus between them is what geologists call the "Tunis dome", which includes hills of limestone and sediments. It forms a natural bridge and since ancient times several major roads linking to Egypt and elsewhere in Tunisia have branched out from. The roads are also dependent with Carthage, emphasising its political and economic importance not only in Tunisia but in Africa in Roman Times.
The Greater Tunis area has an area of 300,000 hectares, 30,000 of which is urbanized, the rest being shared between bodies of water (20,000 hectares of lakes or lagoons) and agricultural or natural land (250,000 hectares). However, urban growth, which is estimated to be increasing by 500 hectares per year, is gradually changing the landscape with urban sprawl
