My daughter will be at New Sprouts Chinese Summer Camp this summer. I am the President of the Board for New Sprouts, a 501(c)(3) non-profit Mandarin language and cultural educational program based in Oakland. I have to tell you the teachers and classes are great (let me know if you would like info on after-school and weekend classes as well)!
The info for their summer camp is at www.newsprouts.org/summer-camp.
2 2-week sessions begiining July 23d and ending August 17th. These camps get great reviews and usually have a Cal professor in for a day or 2 to talk about Chinese discoveries and inventions!