Those wku programs sound very cool from the websites. I don't have experience with them except my almost 13 yr old is really enjoying the Duke TIP at Duke East Campus (Duke TIP is affiliated with the VAMPY; I think they design the courses, syllabi, etc. From the website, VAMPY is better value--read Cost--and more intimate--read smaller group, because the website says 180 kids and East campus has 320). I like lower cost and smaller. My son reports it's very challenging but very good.

My 11 yr old son just returned from a 12 day wilderness expedition in NW New Mexico through www.cottonwoodgulch.org. He was with 10-13 yr olds from all over the country hiking and learning about archaeology (Chaco Canyon), geology, and ecology. They went to the Navajo trading post and learned about their crafts (some died yarn, some silversmithing, etc.) He came back so excited about it and with a wealth of information and new friends. They have different programs for different age groups.