I wonder if these links will come through. I may have to come back and edit.
(Obviously we don't have personal experience at all of these!)
While looking for a link for Sarah's House of Clay (which is supposed to be a big, rambling, fun, creative time), I found
this page. which seems to be up to date.
Also check out especially
Schoolhouse of Wonder. Very outdoorsy science-y.
Eh, the links don't work. But this may get you going. This is just Durham 'cause that's what I have.
American Dance Festival LINK
Boy Scouts LINK
Boys & Girls Clubs LINK
Camelot Academy Edu-Camp LINK
Camp Kanata LINK
Camp Riverlea LINK
Carolina Friends Summer Program LINK
Cresset Christian Academy Camps LINK
Duke Gardens Nature Adventures LINK
Duke School Summer Camp LINK
Duke University Camps for Youth LINK
Duke University Cybercamps LINK
Durham Academy Summer Programs LINK
Durham Arts Council LINK
Durham Bulls Baseball Camp LINK
Durham County 4-H LINK
Durham County Library Reading Club LINK
Durham Parks and Recreation LINK
Durham Public Schools Summer Youth LINK
Girl Scouts LINK
Lakewood Upward Bound Camp LINK
The Little Gym LINK
Jewish Community Center Camp LINK
Kindermusik Summer Camps LINK
Mardi Gras Bowling Center LINK
Movie Makers LINK
Museum of Life & Science Camps LINK
NC Central University Programs LINK
Pasca Pottery Camp LINK
Schoolhouse of Wonder LINK
Wheels Family Fun
Woodcroft Club Summer Camp LINK