Greeny Summer Park Escape

You were walking past the Greeny Summer Park when you noticed an old lady crying profusely while standing there at the main gate of the park. You simply could not walk away without asking the woman as to why was she crying like that. It was hard to understand everything that she explained because she was crying all the time but you did understand that her grandson who had gone inside has not come out. The exit is locked and that is probably the reason the boy has not been able to come out until now. The only way you can help the boy is by climbing the tall tree at the outer boundary of the park in order to direct him to pick up the clues and objects which can be used to solve a number of puzzles in order eventually find a way to come out of the park.