The only accessible cave in the north-east of Slovakia is the cave Zlá Diera (Bad Hole) near the village Lipovce. Speleological (cave) guides are available for demanding visitors.
The basic route takes about 40 minutes. It is not demanding and suitable for children. Solid shoes and warm clothes are recommended (the temperature in the cave moves around 7 degrees of Celsius).

Source: Vydavateľstvo DAJAMA