If you are not a boy scout (maybe a girl scout or member of a high school outing club?) and you want to improve your outdoor skills over the summer, this may suit you: http://www.registeredmaineguide.com/juniorprogramsInfo.html

Put on by the Maine Youth Camping Association and the Maine Inland Fisheries & Wildlife Department, this looks like it provides the same type of outdoor training I’ve seen at summer camps.

 The AMC’s Mountain Leadership School held every August is another option for older youth and adults.

http://www.outdoors.org/education/leadership/mls/mls-overview.cfm

Outward Bound, the National Outdoor Leadership School, and countless outdoor trip companies are other obvious choices.