Kayak

This Kayaker is traveling through a valley what people say was once visited by another world. They left behind markings in the rocks. Can you find them? There are 5 in all. There is a cobra's head, A face of a man that looks scared. A cows scull (or similar animal). There is what appears to be a Gate to another world along with it's 2 gate keepers, and what looks like an alien being or creature from another world.

Did you find all 5? Click here to see if you did.