Other boarding schools:
Idyllwild Arts Academy
Interlochen Arts Academy
North Carolina School of the Arts
Virginia School of the Arts
Walnut Hill
You can find their info at the Gym Chat listings directory under the Dance category:
http://gymchat.com/listings
Why would you like to attend a dancing boarding school? For the school year, or summer camp?
You don't have to be a stick to dance. Good to be in shape, and dancing will help with that. Take the Dancing with the Stars tv show for example; the celebrities got very good and also got in shape at the same time, while having fun. Practicing, conditioning, and flexibility will help your dance performance.