d1e59c9a_w_about_Campground_Memberships__Public_Camping
[Private Membership Camping] Security and privacy create a wholesome family atmosphere. There is fun for the whole family, from tiny tots to adults. [1] Family Environment [Public Camping] 
This depends on the park. You have to research to find out.
Why Buy a Camping Membership   Everything you should Know about Campground Memberships
Public Camping