There are two cave complexes which can be visited without previous caving experience. These limestone caves are on the Buda side of the city and extend for some 120km. The area is soon expected to become a World Heritage site.
The first cave, Szemlőhegy, makes for a very easy tour, the path being concrete and suitable for anyone. There is a 35-minute guided tour available here – the cave is well-lit and warm clothes and decent footwear makes this walk accessible to all. The temperature is a constant 12c.