The ridiculousness of the survival aspects was off putting. You don't dive with your clothes and shoes on, they drag you down Water in the far backwoods is generally fine to drink. Using oxycontin bottles to catch rainwater?? You cannot survive on berries, and using a bear to indicate what is healthy for humans is ridiculous. Make a makeshift net to catch some fish. Use one or two bills to start a fire. Pay attention where you put your feet. And if you want to survive in the wild, your childhood memories are irrelevant.
Some writer who has never been in the outdoors in their life thought they would write an allegory, but allegories have to be based in reality.
Waste of time.