After your underground trip to the world of stalamites you'll eventually end up at the surface and will make you way back to the exit. There is a series of galleries made out of building (see my "Yaolin Shopping" and "Hit the Drums" tips). Beside shopping and budist temple you'll find a collection of bonzai's, a hot-air baloon waiting for you to go up (just a simple small 2 seat baloon rising up), different sculptures and traditional Chinese architecture.
When visiting Yaolin Cave, on your way back, after you get back to the surface and see the day-light. As I already mentioned in "Yaolin Shopping" tip you'll have to get through a series of buildings (some of them for shopping) and some like this specific one - a small buddist temple.
At the entrance you'll be given a drum-stick. Take it and step inside. You want it or not, but you'll have to get through the temple. Now inside you'll find several drums, the one at the entrance is the biggest (see picture) - hit each one for three times. Then light up the scent-stick, pray if you want and get to the exit, where you'll have to pay a 10 RMB fee and get a present from them.
Just for your refference, here are the pictures of the Entrance to the famous cave and the map of it. Click on see more pictures for the map.