Wulin rumor about traveling around the mountains?

In the final stage of the mountain and river mission, this task is for you to escort pigs. I will give you experience and books when I arrive at the escort agency. Traveling around costs nothing. It takes about 7 minutes to get to the escort, about 10 minutes to hand in the task, and that takes 4 hours without stopping, and it takes about 5 minutes to hand in the task, soon.