the great wall is must visit in Beijing. good weather and proper time is important. it is always loaded with tourist. how to make to great wall: i took a line 13 to Huoying. then taking metro exit clear signs available to reach railway station. Buy the ticket for Badaling 7 yuan one way. train is very comfortable. the famous pass is visible in the train journey. took almost 70 mins to reach. after exiting train , walk for 10-15 mins to reach nearest cable car station. I bought ticket for return. very quick and easy way. return fare 140yuan, single 100 yuan. Separate ticket for entrance 40 yuan. need id proof to buy ticket. reach the top enjoy the beauty and come back.