Have you watched OUT OF THE WILD on Discovery Channel? I LOVE this show! It’s like Survivor without the gameplay, million dollar prize, or support crews… They literally drop off the competitors in the middle of nowhere and they have to trek over crazy terrain to survive – self-supported. The only way out is to reach the end, or to hit their emergency beacon and be evacuated by helicopter. It’s about as real as you can get in terms of an adventure/reality show.
Dig around the website – and check out the first two seasons (Alaska, and Venezuela) on @Netflix – pretty sure you’ll get hooked too!