✔ 最佳答案
If you can get a spot in any of the state parks they are reasonably priced. There is a parking area in Davenport (a bit north of SC) that is free but they have been trying shut that down, so do a little research on that if interested.
You can also check out Bob's Pine Grove Camping. I have never been there, and there are definitely mixed reviews, but apparently it is reasonably priced.