B.A.
Brighton School in Granite Bay has a fun summer program where the kids learn about a different habitat (dessert, ocean, jungle etc). They go on several fun field trips and review academics so that they aren't lost before kindergarten starts. I'm on my third child going through the program and we like it a lot. You can read more at:
http://www.brightonschools.com/transitional_kindergartenC...
Good luck!