I am a big advocate for sleep away camp especially if you are a city kid. I grew up going to sleep away in the summer and those summers were the most memorable and still to this day I am friends with many of my fellow bunk mates.My kids are at Camp Canadensis located in the Poconos only 2 hours from the city. Here is a list of camps you should consider for summer 2008 I have friends who send their kids to these camps I mentioned.
www.canadensis.com co ed
www.campbaco.com brother and sister camps
www.camppontiac.com co ed
www.frenchwoods.com co ed