The grotto

You ask to see the Grotto because you heard some wild stories about it.

Frank smiles at you and says "It's this way.

You follow a man made stream that surplise water to the spa baths and other pools. You notice it leads in to some caves. Each cave has a sunken pool in the floor.

You see several naked people in the pools. Swimming, talking, kissing and one couple even fucking on some towels next to the pool.

You want to stay and watch. But Frank wants to move on he tells you "There is plenty more to see and do around the place."