There are elevators but the walk down or up is quite spectacular; the start has light and cave swallows, complete with their nests. The first section is a bit smelly, then it is like looking into a black abyss. We took the only tour we could to 'King's Palace'. This used to be part of the open area, but too many people were damaging the cave's crust and stalagtites. The cave is impressive

On the tour the guide carries bags for anyone who needs the toilet – yuck. Only a little boy needed it and the guide made it clear who got to carry the bag out! - double yuck.