@GetFitwithAmy I live here in Guilin. We took a weekend trip to Lansheng. Hiked all day on a Saturday and I almost died, haha. There are waterfalls everywhere, too, and it's a big tourist spot for the Chinese. Although if you hike between towns like we did, you don't encounter too many people. We were part of the attraction in many Chinese tourists' photos, though!
In Guilin we have karst mountains. The pictures I have of that are not so good, but now that it's cooler I want to go downtown and climb Old Man Mountain again to get better pictures.