The Woods

You're walking through the woods. It's a pleasant day and you just got home from work, so you decided to take a walk, and now here you are. Surrounded by acres of gigantic trees, towering over you and only you. You see a particularly interestingly-shaped tree, and decide to take out your phone and save a picture of it. When you do, however, you realize your phone has no charge left. You must have forgotten to charge it in the car like you usually do. Well, it seems your first choice is a pretty easy one. What do you do?Woods