Pelješac is situated in southern Dalmatia between Neretva bay in the north and Mali Ston bay eastward (between which is so called Little Sea). Mljet channel is south of Pelješac, and Pelješac channel on the western side. It is the second largest Peninsula in the Adriatic after the peninsula of Istria.
Pelješac is 65 km long and is 348 km2 in surface. It is connected with mainland by 1450 m narrow Stonska Prevlaka. This peace of land devides Mali Ston and Ston channels, which are bays in fact but called channels.
There are fertile valleys and rocky hills in Pelješac, the highest of them is St. Ilija, 961 m high. Pelješac is surrounded by numerous islands and islets. The climate is mild Mediterranean. Northeastern parts of the island are cool and dry because of the wind “bura”, while southwesterna are warmer and more humid thanks to “jugo”. The average temperature in January is 7oC, 26oC in July. It belongs to Dubrovačko-neretvanska county, with local centres in Orebić, Ston, Trpanj and Janjina.
About 9000 people inhabit the peninsula. Main industries are olive and wine growing, fishing and tourism. There is one main road connecting it to the mainland. Ferries are available in Trpanj – Ploče, Orebić – Korčula, Prapratno – Mljet.