What bus should I take from Huadu Bus Station to Guangzhou Railway Station?

1. Take Huadu Shiling-Guangzhou Guihuagang Line and get off at Sanyuanli c2 Exit Station (bus stop), then walk to Sanyuanli Metro Station and get off at Guangzhou Railway Station (or get off at Guihuagang Station by bus and walk to Guihuagang Station 1 (Sanyuanli Avenue) and take bus No.803, 840 and 803 A to Guangzhou Railway Station).