I would like to visit the great walls of China.

Monica, actually can finish the trip on your own. First, you take train from Shenyang to Beijing. The tran usually stops at Beijing Railway Station. Then you can take subway line 2 to reach Guloudajie (Drum Tower Street), get out from Exit A1 and then keep walking until you find Deshengmen (Arrow Tower). There you can take no.919 or 877 bus to the wall.