Pick-up from exit C of subway station Dong Zhi Men of Line 2 &13 & PEK Airport Express. Pick-up time is different in different seasons. Single trip driving is about 2 hours. You'll enter from east gate of Jinshanling Great Wall (between April and November). After you get on the Great Wall, you need to walk along the Great Wall to the west, enjoying the sunset on the Great Wall. The driver will pick you up again from a certain tower nearby the middle gate from another side. You’re supposed to hike by yourself. It's easy because there is only one way going along the Great Wall. Each tower name is printed in English inside the tower. The total hiking is about 6-7 kilometers, in 3-4 hours. After the sunset, get down from the Great Wall and get picked up at mid-gate, and return to the city (back to the city at around 20:00-22:00 depending on different seasons). You'll enter and get out from the same gate (middle gate) between Decemberand March. Take your passport and necessary food.