The traffic in Beijing is terrible. The 70 mile trip to the Great Wall took 3 hours each way although it was worth going the extra distance to get to the Simatai section which is very quiet. We climbed the eastern section for 1.5 hours before heading back. The journey back down was significantly quicker as we took the flying fox down. I must have looked a right p**** as I lost the ability to jump and had to be pushed by the old lady running it!!!