Alright, so I live in the city, but where I want to ride mostly is in the park, where there are twigs, dirt, broken/uneven stone tiles, etc. Also, all these sidewalks are not exactly flat, plus I'm not going to be riding in the street. In order to make sure that I don't destroy my bike, I wanted a nice mountain bike.
Now, I'm not too sure about price. My mother said that a nice mountain bike costs a bit, so to make a good decision, and that's why I wanted to ask you guys! Any help would be appreciated.