I used to travel in Hunan University, and I recommend several places for you when the cost of class travel is low:

Shaoshan (depending on what to play, such as not going to Shao Feng or taking a cableway) costs tens of dollars to 100 dollars.

The window of the world is more than 80 yuan (excluding shopping and eating by yourself)

Hengshan (highly recommended) package fee generally fluctuates from 120 per person.

Shiyan Lake (whether it is a day or two) is dozens to more than a hundred points.

I think only these low-priced places are more suitable.