Metro 3 and Metro 2. According to Baidu map query, the route from Nanjing South Railway Station to Meiling Palace is; Get on the train at Nanjing South Railway Station, take Metro Line 3 (direction of forest farm), then get off at Dagong Station, change to Metro Line 2 (direction of Jingtianlu) at the station, get off at Mafang Station (exit 2), and walk 1.5km to Meiling Palace.