How many kilometers is it from Guo Mao to Huilongguan?

Bus route: Metro 10 → Metro 13, the whole journey is about 28.0 kilometers.

1. Walk about 950m from Beijing Guo Mao Food City to Guomao Station.

2. Take the subway 10 line and arrive at Shaoyaoju Station after 8 stops.

3. Walk for about 280m, and then transfer to the subway 13 line.

4. Take the subway 13 line and arrive at Huilongguan Station after 5 stops.