"Camp" has come to mean so many things these days. Week-long, summer-long or overnight camp... first thing is to decide your purpose. Is this a means of childcare arrangements for the summer? Among my questions for this type of scenario is whether children are interacting and grouped with peers versus a variety of ages intermingling for extended periods of the day. Is your primary intent to focus on a specialty or interest (computer programing, sports, etc) or are you seeking an opportunity to further develop your child academically? Camps that are designed for specific specialties offer a concentrated amount of time building a particular skill or series of skills. This can be quite beneficial, as well as, rewarding should your child really enjoy the focal theme of the camp. Personally, I would look for a camp that not only specialized in my child's chosen activity but also offered a couple of secondary options for the sake of variety. Perhaps your intention is simply based on offering your child an opportunity for trying new things, making friends and building independence/confidence. Camp is a wonderful avenue for such and again, I would look for those facilities that offer a wide variety of activities.
Once you outline your initial intention regarding summer camp, then it is time to do some research to see what is offered. I would highly encourage that you involve your child or at least offer several options after vetting location/logistics, costs, reviews, etc. Having buy-in from your child will certainly help to ensure the experience is a positive one.