Take the highway from Tongxian County and go south to the Taihu exit of Beijing-Shenyang Expressway. (You have to take the viaduct to get there. It's the Beijing-Shenyang Expressway, followed by 1 traffic lights. Go straight and there is another traffic light about 10 meter. Go south along that road for about a few kilometers, and you will see it. Because there are few cars on that road and the surroundings are empty, it is easy to find them on Luxi's right.