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 neighbour Hvar with 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 (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: 
There are also occasional flights directly to Brac from cities such Zagreb or Amsterdam.
On Brac, in almost every place, it is possible to rent cars, scooters also quads and bicycles to explore the island.
Buses run throughout the island. Most go to or from Supetar. Sample price: Milna-Supetar round trip 40 kuna per person. For any connecting service (Milna to Bol through Supetar), buy the ticket online (autotrans.hr). Despite what the website says, the ticket office says all drivers should be able to scan mobile tickets on the bus. Drivers will NOT sell connecting service and you could end up paying twice as much as you should. Ticket offices will not convert/exchange tickets.
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. Trip with bicycles in 'Pustinja Blace' (.
Visit the Vidova Gora – the highest peak on Brac island and well worth a trek to its summit to view the breathtaking views of Brač as well as the surrounding islands. Whether you choose to hike to the highest point or stop further down, you will not be disappointed with the view you receive. 
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.