Something about the idea of summer camp seems so old fashioned. I can't imagine girls today wanting to attend camp. But my area, which has had thriving camps since the 1910s still has a few that seem to be doing fairly well.
Above is a group shot of Camp Dellwood, which was located about 5 miles from where I live. I can remember it as a child in the 1960s, or rather, I remember the sign and the archery range, which was all that was visible from the highway. It must have closed by the 70s.

In this close-up you can see that in 1931, these campers were still wearing bloomers. but most of them are pretty short - over the knee. It could be that these were "special" uniforms, as I can't imagine that they wore all white to hang out in the woods!
There was also, just up the road from Camp Dellwood, Camp Junaluska. Here is an ad from a 1941 Vogue.
As far as I know, there is only one girl's camp remaining in my county - Skyland Camp . It sits on a hill just across my little town. In the morning we can hear their announcements and at night we can hear their recording of Taps. This camp was started in 1917 on the site of an old hotel. The hotel was being closed, and an impulse, a woman guest bought it at a public auction on the site. The hotel still stands, though it has seen better days.
But Hendersonville, about 45 miles away, has a thriving camp industry. Last week all the camps held a job fair, and they were swamped by job seekers. And not just the usual collage students looking for a fun summer job - many of the applicants were out-of-work adults looking for a temporary job to make ends meet. Hopefully the camps will be full and will provide these needed jobs.