It is best to check the bus route at the bus stop of Kunming Station. Now Kunming is repairing the subway, and many lines have been temporarily changed.

I don't know which gymnasium you are looking for. Tuodong Gymnasium is in the east. It takes about 40 minutes to walk. The city gymnasium is in the same direction as the Cuihu Library in the west, and it takes about 1 hour to walk. Jinma Biji Square is not too far from the railway station, about half an hour's walk.