Day 5 . We were on our way by dawn's early light. The South end the island is connected to the mainland by a 4 mi (6 km) long causeway between the Gulf of Bou Grara and the Mediterranean Sea. The causeway was originally built by - WHO ELSE?- the Romans, some 2000 years ago!!! In the South of Tunisia, around Medenine and Tataouine there are still a lot of Berber villages called Ksours (Ksar in singular) to be found. These multistory buildings served as communal houses for people, and fortified granaries for their crop. They were built around courtyards, with windows facing inwards. Our guide, Mohamed, patiently waiting for us to explore this unique place.Hang in there, there is more to come from here tomorrow!