What is the most convenient self-driving route from Chongqing to Caohai, Bijie, Guizhou?

Starting from Chongqing, you can directly take the expressway from Chongqing to Zunyi, then from Zunyi to Zhazuo to Guibi high-grade highway to Bijie and turn to Caohai. This is the most convenient method recently. You can even take the Fangsha Highway directly from Zunyi to Dafang first, and you can also visit Dafang Baili Du Fu Forest Park (March and April), Dafang Jiudongdong National Underground Park and Hongjiadu Scenic Area. It takes about thirteen days from Chongqing to Weining.