Shared taxis with a fixed destination, which leave when full. Cheap and readily available in all main beach resorts. Most cabs have meters - or you can agree a fare in advance. Buses tend not to have timetables or air conditioning.
Vehicles drive on the right, roads are generally good.
Petrol is cheap and there is no shortage of petrol stations. Domestic airline Tuninter operates from Tunis to Djerba, Tozeur and Sfax. Charter flights from regional airports such as Birmingham, Glasgow and Belfast. Contact your tour operator for details. Towns and cities are linked by a reliable, good value rail service.