Buda palace labyrinth

The Labyrinth under the Castle Hill is a part of the vast Castle Hill cave system. This is the easiest one to visit, as there are no ladders, just stairs to climb. The Turks had transformed the original drip-stone caves into a system of tunnels and cellars.
During World War 2 the labyrinth served as a bomb shelter. Today, the Buda Castle Labyrinth features a little well, which has real red wine flowing from it. You can also find some pre-historic cave-paintings and a little wax museum - children, too, love the place.
Open from 9:30 till 7:30pm
How to get there:
Take bus no 16 from Deak square. Get off at Disz ter(square) and walk 100 meters to Uri street. Look for the flag with the picture of a labyrinth on it.
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Palvolgyi cave

The dripstone-rich cave, the longest one in the Buda Hills and the third longest in the country, is a highly protected natural preservation area since 1944.
Its length exceeds 7,200 meters; the vertical dimension is 104 m. The temperature is a constant 11 Celsius, so dress up well, bring hiking boots and expect to climb ladders.
Open from 9am till 4pm
Childrens only 5 and up
How to get there:
Take bus 65 at Kolosy ter. Get off at Palvolgyi Cseppkobarlang stop

Szemlohegyi cave

One of the most beautiful natural caves of Europe, with unparalelled mineral formations. This cave is much easier to visit than the Palvolgyi cave, so it’s also suitable for children.
The aragonite crystal formations and dripstones are under state protection. Tours start every hour - again, make sure you bring a jacket or sweater, even in the summer.
Open from Wed-Mon 10am till 4pm
How to get there:
Take bus # 29 from Kolosy ter, and get off at Szemlohegyi barlang stop