Hévíz–Balaton Airport Hévíz–Balaton Airport Hévíz–Balaton Airport , previously also known as "Sármellék International Airport" (), is an international airport in Hungary located west of Lake Balaton, south-southwest of the village of Sármellék, Zala County and Keszthely. It gains importance due to the proximity of Lake Balaton, Hungary's most important holiday resort and the thermal spas of Hévíz and Zalakaros. A military airport was already located here in the 1940s. It was paved in the 1950s and functioned as a Hungarian military airport until 1960, and as a Soviet military airport between 1960 and the Autumn of 1990. The current runways were constructed
Bilećko Lake which was created in 1968. This is the only source of surface water in an area which is subject to extreme weather conditions in winter and also in summer. Čepelica is its small tributary in Bileća Rudine and is stated to be the best known subterranean river in Bosnia and Herzegovina. It lies in the Upper and central part of Trebsinjica valley 17 km from Trebinje is one of the largest lakes in the country. The landscape of the district where the lake is situated consists of lime stone mountains with bare karst formations Bilećko Lake Bileća Lake () is