We have camp sites for families or just groups of people to use for holidays. So have additional facilities but many are just a field and washing facilities and possibly a shop to buy food and a social club for evening entertainment.
Also organizations like Guides and Scouts go camping. This weekend which is Spring Bank Holiday Weekend in Britain many Brownie, Cubs, Scouts and Guides will be camping. In fact a lady from work helps run a Scout group and she has borrowed the company van to transport a lot of the equipment for the weekend camp.
I have been camping myself twice both as an adult at a folk festival (Fairport Convention). Here a friend is pitching her tent.
That sounds awfully like the RV/Tent campground I go to once a year in July, here in Montana, up in Glacier International Peace Park, which stretches from northwest Montana up into Canada at the province of Alberta. :)
I camp at a campground just a little drive south of the town of East Glacier, which is the eastern gateway into the park.
The tent facilities are in the pine trees, and the RV's and campers set up in two large open fields (which are also horse pastures). It also has a community center for social activities, a shower facility, and there is a small shop at the main office.