NYC is full of free activities for kids, including plenty of free classes for kids like NYC Parks' Learn to Swim sessions for all ages (even adults). If you have a recreation center membership ($25–$150), you're eligible to sign up for the March 26–June 7 Learn to Swim session with a mandatory water test on March 24.
Want to get your name or your child's name on the list? Registration opens March 12 at noon and ends March 19 at 11:59pm. Lottery results will be announced March 22, and kids' sessions are available both after school and on Saturdays.