T.F.
There are tons of programs available through daycares, (Beary Best, Cambridge, Carpe Diem, etc.... A lot of country clubs have camps as well.. Our Country club has camps and the last I heard, you don't have to be a member to participate.
The schools usually have a "summer school" for about 6 weeks which has a lot of fun things to do.
That said..............For something to meet all of your criteria/rules, I would find a college student or nanny for the summer so you maintain the control and rules you have set in place.
Field Trips are fun... Will your child be opting out of them at school as well? If so, that is sad because each grade level goes on trips and it is sad to see the 1-3 children left behind with an assistant because the parents don't allow field trips.
If you take that route, please.... take your child on field trips yourself.. they are educational and fun!
I hope you find a solution.
Nanny Services... AAA, SitterCity, (check the classified in the back of the free Frisco Child magazines)
ETA: Thank you!! I completely understand the field trip situation now.