How do I get to Great Wall

Do you mean Dabaling Great Wall? If so, you can take the Airport Express Train to Dongzhimen Station, get off and change to Subway Line 2 to Jishuitan Station (Exit A), and then walk to Deshengmen Arrow Tower to take Bus No. 877, 919 or 880 to the wall.

Hi thank you for your reply and info provided. I read on other websites that Dabaling is the busiest tourist-wise so I was thinking of Mutianyu how do I get there. Get I still get the subway and then instead of getting the bus to Dabaling get a taxi to Mutianyu?? WOuld I still make it to see a bit of the Great Wall take a couple of pics and then leave? thank you

Badaling is in Yanqing area and Mutianyu is in Huairou area, which are far from each other.
If you want to go to Mutianyu, you can go to Dongzhimen Bus Station to take bus 916 to reach Huairou and then take a taxi to reach the attraction.

Many many thanks for your help Rita....we should manage to make it :)

In the morning near Dongizhimen Bus Station there are also mini-van drivers offering their services to the Mutianyu section of the Great Wall. You will have to negotiate the price.