Dugi Otok is the seventh largest island in the Adriatic Sea, part of Croatia. It is located off the Dalmatian coast, west of Zadar. It is the largest and westernmost of the Zadarian Islands, and derives its name from its distinctive shape: it is 44.5 km long by 4.8 km wide, with an area of 114 square kilometres (44 sq mi). Its elevation reaches 300 m; and many of its higher portions contain stands of Maritime Pine.

D109 is the main state road on the Dugi Otok Island in Croatia connecting Telašćica Nature Park and a number of island villages and resorts to Brbinj and Zaglav ferry ports, via the D124 and D125 respectively, from where Jadrolinija ferries fly to the mainland, docking in Zadar and the D407 state road. The road is 44.4 km (27.6 mi) long.

D124 is a state road on Dugi Otok Island in Croatia connecting the D109 state road to Brbinj ferry port, from where Jadrolinija ferries fly to the mainland, docking in Zadar and the D407 state road. The road is 1.7 km (1.1 mi) long.

D125 is a state road on Dugi Otok Island in Croatia connecting the D109 state road to Zaglav ferry port, from where Jadrolinija passenger ferries fly to the mainland, docking in Zadar and the D407 state road. The road is 1.1 km (0.68 mi) long.

Sali is a village and a municipality in Croatia in the Zadar County. Sali is a small town but still the largest on the island of Dugi otok. The total population of Sali is 1,698 inhabitants. The settlements are:

Soline is a small Croatian village on the island of Dugi Otok. It is divided in two parts: Bura and Japar, located on Solišćica Luka Bay. The village was named after the old salt pans that are in the bay.
Telašćica is a bay in the southeastern part of the island of Dugi Otok, Croatia, in the Adriatic Sea. It is a designated nature park, full of wildlife and sea creatures.

Veli Rat is a village in Croatia on the island of Dugi Otok, it is connected to other villages on the island by the D109 highway. To the northwest of the village is the Veli Rat lighthouse.
Veli Rat Lighthouse is an active lighthouse on the Croatian island of Dugi Otok, and is a well-known landmark near to the village of the same name.

Zaglav is a port village in Croatia. It is connected by the D125 highway and by ferry.