One of the best places in the city. It used to be the children's part of the Gellért bath (there was a subway under the street that connected the two parts of the bath). It is a perfect place to have some drinks with friends, or even for a dinner, because their kitchen is great. The atmosphere is wonderful, since the tables are inside the old children's pools. And it is all surrounded by big trees. There are also open air movie nights sometimes. If you plan to have a dinner here, it's good to reserve a table, because it may be full especially at hot summer evenings. As far as I know it's open from May to end of September.