going by subway from Wudaokou to Beijing Nan zhan

From Wudaokou, take metro line 13 before 06:00 to Xizhimen, transfer to line 4 to Beijing South, Exit A out, taking 40min.
From the subway station to Nan Zhan, you just need to walk for 5-10 minutes. There is the quick entrance on B1 of the train station, after getting out from exit A, walk toward the North Exit to the entrance on B1 following the signboards.