You can take a taxi or subway then meet the Chinese & English speaking guide at Exit B of "Hepingxiqiao" Subway Station subway of line 5 at 7:50 AM in the morning, then go to Mutianyu Great wall directly and hike there for around 4 hours, and the Mutianyu Great Wall is located in Huairou District and is one of the new sixteen scenic spots in Beijing. It is connected to the Juyongguan Great Wall in the west and the Gubeikou in the east. The open 2,450-meter section of the Great Wall is characterised by dukes on both sides of the Great Wall. Later on come back to the meeting point in downtown again.