We went to an unrestored section of the Great Wall. Little did we know, but past the second watch tower, the wall was off limits to tourists. One thing you learn about China though is that nothing is really off limits. We paid the gate guard less than three dollars a piece and were free to trek the wall. Since we decided to go to an unrestored area, there were very few tourists and so we pretty much had the wall to ourselves. We did meet two girls from the UK who paid the toll with us and ended up hitching a ride back with us.