Lake Balaton is a freshwater lake in western Hungary. It’s a major holiday destination with beaches, volcanic hills, resort towns and high-rise hotels along its 197km shoreline. The hilly north shore is a wine-growing region, with protected wetlands and hiking trails at Balaton Uplands National Park. The town of Veszprém has a walled Castle district, and 13th-century frescoes at the Gizella Chapel.