Annagora Aquapark anchors the 17th NN Ultrabalaton: one full lap around Lake Balaton, with the lake as a constant presence. It has grown from a small ultra idea in 2007 into “Hungary's most popular community sports event” and “Central Europe's most popular running race,” but the basic bargain remains simple: keep moving until the circle closes.
You can take it on alone, in a relay, running, or by bike, meaning the road has that long-haul mix of solo effort and team coordination. The course is not an out-and-back; it is a full tour, with checkpoints, fatigue, night hours, and the finish returning everyone to the start area. One detail to remember at the end: the finisher medal can carry the “runner's face engraved on finisher medal,” which feels appropriate after a lap that personal.