Visitors to Hévíz, close to Lake Balaton, pay HUF 14,449 per night, on average, for accommodations, Szallas.hu said.

Bookings in Balatonfüred, on the northern shore of Lake Balaton, cost nearly as much: HUF 14,444 per visitor per night, it added.

The other top destinations in Hungary, based on Szallas.hu's bookings, are Siófok, on the southern shore of Lake Balaton; the spa towns of Hajdúszoboszló, Gyula and Zalakaros; the county seats of Eger, Szeged, and Pécs; and the capital.

Szallas.hu noted that the area around Lake Balaton now accounts for one in three bookings at commercial accommodations.