Tapolca is rich in natural assets. Among its particularly interesting sites are a cave-lake system that may be navigated by small boats and the basalt columns of St George Hill (Szent György-hegy). Also well known for its wine trade, the town has become the cultural centre of the region. The neighbouring district of Diszel was joined to Tapolca in 1977. Diszel is famous today for its First Hungarian Scenic Collection (Első Magyar Látványtár), an exhibition space for contemporary artists. Among the natural assets in the area the nearly 4-kilometre long cave-lake stands out. Another attractive sight are the basalt columns lining the side of the 415-metre St George Hill, reminders of former volcanic activity. Old wine cellars are tucked into the side of the hill.