There's the Atlas summer program at CSG for gifted learners. I have heard good things about it for years and the facilities and teachers are wonderful but dd won't be "old enough" until next year. I suspect its aimed more at "typically" gifted, rather than PG gifted. I thought about pushing to have dd go early, but have opted to wait until she can go with a friend.

We have had really good luck with the summer programs at Wellington in the past because they were so flexible...

Warning: sleep deprived