Omi� is a town and port in the Dalmatia region of Croatia, and is a municipality in the Split-Dalmatia County. The town is situated approximately 25 km (16 mi) south-east of Croatia's second largest city, Split. Its location is where the emerald-green Cetina River meets the Adriatic Sea (Croatian: Jadransko More). Omi� has a population of 15,800 and its area is 266 km2(103 m2)