how do I go from tiantandongmen metro station to temple of heaven south gate?

By bus: You can take bus no.36 at Tiantan Stadium, get off at South Gate of the Temple of Heaven directly.

On foot: From East Gate of Tiantan (Tiantandongmen), you can walk south along East Tiantan Road around one mile. Then walk west along East Yongding Gate Road around 440 yards.