M.M.
Hi S.!
I am currently taking Kids First Swim class in Forest Hill and like it for my 11 month old. Sessions are about $80 for 6 classes and it's a "mommy and me" type class. They do stuff like kicking, splashing and going under water, but no actual swimming. They may have something different for your oldest. I would check out the website www.kidsfirstswimschools.com. Also, a friend of mine is taking her little girl to Bel Air Athletic Club's swim school and she likes it a lot. Good luck!