Final answer:
Jonas sees a wavy, moonlit valley and no rock beside them as he nears the bottom of the hill on the sled when escaping from the community.
Step-by-step explanation:
Jonas sees a wavy, moonlit valley stretched out before him as he nears the bottom of the hill on the sled when escaping from the community. He also notices that there is no rock beside them or anywhere around. This scene represents a moment of freedom and discovery for Jonas as he leaves behind the controlled and restricted world of the community.