I take my two year old to YMCA in South Hills in the Summer and the YMCA is offering a class now at Pathfinder School. I believe they will be offering classes up until they go back to the outside pool in the Summer. My 6 month old will be starting in the Spring also. You can start at 6 months. I really like their program and have been with them since my oldest son was around 9 months I believe.