I'd suggest contacting your local Regional Center or Easter Seals. They should have information on classes and resources in your area. Just two days ago my Easter Seals caseworker gave me a list of classes and resources designed specifically for autistic kids and support groups in the area. Swimming, gymnastics and support groups and those were just the ones I had specifically mentioned interest in. I had been searching for months for just those kind of resources. She told me a lot of times they don't advertise things because they don't have a lot of money, but if you ask they should be able to point you in the right direction.