Which summer activity is better, CMU's pre-college summer camp or stay local to take college course?

<p>My son is in 11th grade and he wants CS as major in college application. I have headache about which summer activity to choose this summer: CMU’s pre-college summer camp (game academy) or stay local to take college CS course. He’s also applying for COSMOS. However if he could not get it, I really don’t know which one is better for his college application. Any suggestions, please?</p>