The distance from the exit of the cave to the parking lot where you left your car is about 2 km and in about 20 minutes of normal walking you can go back.
In summer you can use a paid train that will take you back from the cave exit to the parking lot. However, given the epidemic, do not rely on this information.
In case the weather is sunny and allows a walk, we recommend you walk along the Rabishko Lake. There you can find a great place for an impromptu picnic, where you can eat the food brought and enjoy the wonderful wine from the cellar, which you probably bought.