The Tunnel under the Strait of Sicily is a proposed megaproject to link Sicily and Tunisia. The distance between the coastlines is about 155 kilometres (96 mi) and would be reached by five tunnels constructed between four intermediate artificial islands which will be built with the excavated material. A preliminary study was promoted by the ENEA institute.[1]
The connections across the Strait of Sicily, as of 2011, are by car ferry and air travel. There are ferries Palermo-Tunis (3 round trips per week), Trapani-Tunis (1 round trip per week), Civitavecchia to Tunis (2 per week), Genoa-Tunis and Marseille-Tunis.[2]