Check to see if the camp(s) you are interested in offer a Mother-Daughter weekend. It's a great way to introduce her to the environment and for you to preview the camp for yourself ... so you'll know the daily schedules and lay of the land for when she's there.
Last year, Skyland Camp for Girls (near Asheville, NC) hosted one and four moms brought 7 girls from the DC area to visit (and joined 14 others from across the country) for the fun-filled weekend.
The weekend was dedicated to living the life of a camper and all activities were open and all participants moved through activities like campers do. Moms and daughters were together for some and separated for others. The moms (and grand moms!) had a blast!!! The girls learned the lay of the land and met other prospective campers. All rode horses, played court games, learned performance moves in musical theater, shot archery, swam in the heated pool, did a cool crafts project and a yummy culinary arts project and slept in screened-in porches. It was SUCH a great time!
It was really fun to see, at the end of the weekend, the enthusiasm from the campers who weren't initially enthused about attending, as well as the moms who didn't want to send their daughter to camp. All seemed excited to make plans for overnight camp the next summer!!
Visiting AS a camper is really the best way to "try it out." Your daughter will love it! Find the camp that's right for you and have a ball.