C.J.
The one I think is really good for children's swimming lessons is:
http://www.cedarcrest.edu/Redesign/rac/home.shtm
If that isn't the correct link, it is the Rodale Aquatic Center at Cedar Crest College in the Lehigh Valley. Many Moms from the area take their babies and kids for lessons there. So you will meet them.
Don't forget to become a member at the Lehigh Valley Zoo....right there in Schnecksville...
Hope that helps :)