ssp is supposed to be very challenging and very good if she wants to try physics type stuff - prestigious too

http://ssp.org/home/index.php

my ds 14 took jhu cty neuroscience at baltimore last summer and said it was challenging. He's done 2 other summer institutes, one through jhu cty and one through duke and said this was the hardest.

check out www.cogito.org for summer programs--it's an incredible resource!