Swimmers of all ages are invited to enjoy a fun-filled morning while raising funds for a worthy cause at Winthrop-University Hospital’s Twelfth Annual Swim-a-Thon on Sunday, April 21 from 7 to 11:30 a.m. at Hofstra University’s Swim Center. The event will raise vital funds for the Hospital’s Child Life Program through which certified specialists utilize play and education to improve children’s understanding of medical procedures, teach relaxation techniques and provide emotional support for the entire family. Participants will enjoy swim coaching, massage therapy, live music by the Mineola High School jazz band and Central Beat rock band, crafts, yoga, raffles, prizes and more. Registration for adults is $20, $10 for children ages four to 18 and students with a valid school ID. Info; www.winthrop.org/events or call 663-4423.