One other place in Guizhou where I haven't been but where I would very much like to go next time I visit the province is a place that I'm pretty much certain no-one outside China has ever heard of called Pingba (平坝樱花): the world's largest gathering of cherry blossoming trees: an incredible 700,000 trees! All of this in islands and peninsulas on a lake. This place looks like the closest thing there is on earth to the garden of Eden!
It's a shame Guizhou is rarely visited by foreign tourists. In general in my experience it's the number 1 mistake people make when they visit China: they tend to spend all their time visiting cities (Shanghai, Beijing, Xi'an, etc.) when the countryside is in my humble opinion in some ways more impressive, with so many absolutely breathtaking sites.
A fun anecdote I recently read in the French press (20minutes.fr/publicommuniqu…) which illustrates this is that there's this French guy called Jean Bottazzi who's the Vice President of the French Speleology Federation (FFS). One day he decided to visit China and Guizhou specifically (since the place is filled with mountains and huge cave networks, including the Shuanghe cave network, the longest one in China) and... he literally stayed there, he now lives in China!