According to Baidu map, the distance from Tiangongyuan to Badachu is 53 kilometers, and the whole journey takes 2 hours. The specific route is as follows:

1. Walk 10 meters first, arrive at Tiangongyuan, take Daxing Line of Metro Line 4, pass 18 station and arrive at Xidan.

2. Then walk 390 meters to Xidan, take Batong Line of Metro 1 Line, pass 10 Station, arrive at Bajiao Amusement Park, and then walk 270 meters eastward to Jingyuan Road.

3. Finally, take bus No.215, and arrive at Badachu after 6 stops.