Share 'Any Ballerina's on here?'

I am not a ballerina, but I would love some fitness advice from a Ballerina. I am currently taking Yoga and Pilates 2 times a week. Yoga makes my arms and shoulders very strong, and Pilates works the core. I don't seem to get any benifit for my legs. Dancers have great legs, and I know there have got to be some great ballett exercises that could work my legs. Especially the calf muscles. Any ...