The question is @Pegii , is what exactly did you focus on when you were meditating to be "somewhere else"? Also, if there was scratch marks, bruises etc on your body then don't do it again. I wouldn't want to attract unwanted (possibly malevolent) entities. Also, if you did leave your body and have gone somewhere else, I don't think leaving your body in the woods is a good idea.
If you're planning to do it again, why not set up a camera right in front of you and share it with us so we'll know what happened to you while you blacked out?
Good questions and wonderful idea about the camera!