Brna is a bay and small settlement on the southern coast of the island of Korcula, located 4 km southwest of the town of Smokvica and 20 km southeast of Vela Luka. The Brna bay is divided into two parts by the peninsula Mali Zaglav. The eastern part has a small settlement and harbor.

From Brna towards the west, continued on the southern island road along the sea, are the smaller villages of Prizba and Grscica. In front of the coast between Brna to the east and Prizba to the west there are several small islands: Vrhovnjak, Crklica, Stupa, Otocac, and Sridnjak. The connection with land is by a ferry from Split to the city of Korcula or to Vela Luka and from Orebic on the Peljesac peninsula to the city of Korcula.

This entire area is well known by its vineyards and the respected wines of Rukatac and Posip, therefore this is how Brna became, in the XIX century, a harbor for the transport of wine from nearby Smokvica to the harbors on the Adriatic and the Mediterranean, and has turned to tourism lately. In the vicinity of Brna is the Istruga bay which has a recreation center with two tennis courts, a bocce terrain, tables for table tennis and a terrain for sand volleyball.

The town has a store, a post office and a few restaurants with an exceptional offer of fresh fish, fruit, vegetables, olive oil and excellent wine. Accommodation can be found in modernly equipped private houses and apartments.