S.
I have been looking for the same thing and so far have not come up with anything.
My son is 4 and will be going to Kindergarden next year. At the moment we are looking for a full day care just on Fridays and that is hard to find (and expensive)
My son is in a cooperative preschool which is less expensive because the parents are also doing some of the work. This does have the draw back of only being part of the day.
If I do find something I can let you know. For the summer we are looking for 2-3 full days of care because the preschool will be on summer break.