Make you check the 2013 CSLP Teen Manual for all the fun programs and activities offered there!
the city of Chicago is offering a city-wide learning project free to youth that encompasses nearly 100 different museums, libraries, schools, agencies and more. You can learn about it at http://chicagosummeroflearning.org/. You may want to find out if your home town is doing anything like this.
For those of you looking to infuse some Science, Technology Engineering, or Math (STEM) into your summer activities, YALSA now has a free, online STEM Programming toolkit to help you do just that!