Meet your expert guide at your hotel at 8 am and travel through the bustling streets by private, climate-controlled vehicle toward the Gubeikou Great Wall (3 hrs). As you hike along with your guide, you'll see lush vegetation and learn how this part of the wall has crumbled because in the 1950s local farmers took bricks from the wall to build their houses. Pass by a local village and walk around the inner circle of wall, which was the second defense in case the main wall was breached. Enjoy your picnic lunch on the wall with spectacular views. Continue walking to the 24-Window-Tower, the summit of this section and return to Haowang Tower, where to walk down to meet your transfer back to Beijing downtown.