Location

Snake Catcher Village
This is village Xu Xian is from, the main occupation of villagers are snake catchers, hence the name. The villagers build their wooden huts are built on the peaks of stone pillars for safety and are connected by a network of wooden bridges and cranes.

The village is protected by a tall wooden fence that is only accessible by a heavy draw style wooden gate.

The jagged landscape shares a strong remembrance to the real-life location of Zhangjiajie National Forest Park, where sandstone dotted the landscape.

Snake Clan hideout
The headquarter of the snake clan is located in a dark cavern with pools of water. It is implied is located near the Snake Catcher Village in the movie.

Pagoda
A massive abandoned pagoda that overlooks Yongzhou City, most likely serves as a place of religious worship, as most pagoda that are built-in Asia have religious functions and in the movie, the area is litter with Buddha statues and artefacts.

There is also hidden underground lair, that contains a massive skeleton of a demon and numerous anti-demon magic guarding the corridors. Is implied this lair is used for worshippers to practise anti-demon magic and the hunting of demons.

The pagoda was later destroyed in a fight between the snake sisters and the young Taoist.

Precious Jade Workshop
A famous workshop that produces magical weapons for demons, is located in the gingko woods located at the outskirt of Yongzhou City.

Yongzhou City
A large city, located in the Hunan province. It's notable features a massive square wall the surrounds and protects the city.

The walls were later breached by a massive serpent.

Waterfall Base
This is where Xu Xian first discovered the unconscious Xiao Bai on a boulder next to the waterfall, this is where Xu Xian would spend his day tinkering, studying and drying his herbs.

Later, it was implied this is also the same location where Xiao Qing and Xiao Bai was staying for 500 years, trying to transcend to immortality, where the same rock is now cover in a thick mat of moss overlooking the same mountainous landscape.