Batumi, historically Batum or Batoum, is the second-largest city of Georgia and the capital of the Autonomous Republic of Adjara, located on the coast of the Black Sea in Georgia's southwest, 20 kilometers north of the border with Turkey. It is situated in a subtropical zone at the foot of the Caucasus. Much of Batumi's economy revolves around tourism and gambling, but the city is also an important seaport and includes industries like shipbuilding, food processing and light manufacturing.