I don't remember where you live - in Cape Breton, I think?
Here's some things I know of in Halifax:
Kyber Kids
They used to offer web design, animation and I think video gaming design. I wasn't that thrilled with them, but I've heard really good reviews from others.
Supernova
HIGHLY recommend them. It's run out of DalTech (used to be TUNS) My 6 year old did a summer camp last year and is doing 2 this year. My 13 year old participated in their ITS for Girls program over the winter. I can't say enough about them.
Dal Mini University
You might want to check out all the universities for similar programs.
Mount Allison offers some amazing albeit expensive residental camps but I don't know if they match your sons ages/interests.
NSCAD has good programs, but they start at grade nine - something for the future?
My oldest took web design and digital animation a couple of years ago through the CAP program. One was through the library and the other a community centre. It was like pulling teeth to get info about it though.
I don't know anything about
this one - I saw it on craigslist. They say they offer summer digital animation camps from 9-15.
Hope this helps!
M.