Feneketlen-tó, which means bottomless lake, is surrounded by a beautiful park filled with paths, statues and children's playgrounds. The lake is not as deep as its name suggests. In the 19th century there was a brickyard in its place and the large hole dug by the workers filled with water when they accidentally hit a spring. Ever since, locals cherish the park and they come to feed the ducks, relax on the benches or take a stroll around the lake.
If you like to run, there is an excellent jogging track around the lake (0.3 miles / 530 meters long). The track, along with an outdoor gym, opened in August 2015.
Getting to Feneketlen-tó: Take Streetcar 19 or 49 to Kosztolányi Dezső tér and take the short walk over to the park