Brac is in Croatia
Brac is a large island in the Adriatic sea, just off the coast of Split. In Landscape, Brac is similar to its well known neighbor Hvar with its rolling hills, pine and fig trees, isolate bays and clear water. Brac has 2 larger towns (Bol and Supetar) from where you can catch a ferry to Split/ Dubrovnik (from Supetar) or catamaran ( passengers only) to island Hvar (from Bol).
Snakes are aplenty on Brac, in particular in the Milna area. Locals will strongly discourage you to wander into the wilderness without what they call a Knueppelsk (a chunky wooden stick).
Each townlet and village on the Brac island has its own dialect but many people speak English, German or Italian, especially if working in tourism.
Split has international airport with many low cost airlines departing from European destinations. Also possible to reach Split with train. Take a ferry from Split to Supetar (50 min) or Makarska to Sumartin (30 min)  Timetable of the ferry is published on the following link:  Bus schedule from Supetar to other places on the island: 
On Brac, in almost every place, it is possible to rent cars, scooters also quads and bicycles to explore the island.
There are many sights on the Island Brac. Recommend to visit Dragon's cave near village Murvica on the south side of island. Hermitage of Blaca, that can be reached from Vidova gora mountain or from the Blaca beach. Vidova gora moutain is the highest mountain of all Adriatic islands. It has a great view to the Zlatni rat beach, place Bol and islands Hvar and Vis. Dominican monastery in Bol has a great collection prehistoric items, amphoras and numismatic collection. Museum of the island in the village Škrip.
Visit many pebble beaches and private coves, diving, kitesurfing and windsurfing in Bol.
Try Brac dishes of domestic lamb (vitalac) and famous Brac cheese.
Brac is famous for its wines, the most famous is Bolski Plavac. Spirits made of grapes with herbs.