Coming from Chengdu, I want to play Jiuzhaigou, Ruoergai Flower Lake, Jiuqu Yellow River, Hongyuan, a total of 4 days, please give me advice on the route and accommodation

You are self-driving, carpooling chartered car, or public transportation, if self-driving, carpooling chartered car, the route is Jiuzhaigou, Ruoergai Flower Lake, Jiuqu Yellow River, Hongyuan, public transportation is troublesome, time is not enough, basically on the road.