AVON MASTERS HENDRICKS SWIM ALLIANCE — open swimming 8 to 9:30 a.m. at Clarks Creek Natatorium. Pre-payment is required. Passes are available at the Plainfield Recreation Center. Call 839-7665 for more information.
GROUP VOLUNTEER PARTICIPATION EVENT — 9 a.m. to noon at Sodalis Nature Park, 7700 S. C.R. 975 E., Plainfield. Park naturalists and invasive species experts will lead volunteers in pulling invasive plants and teaching about their impact on central Indiana green spaces. For more information or to register, call 718-6188 or visit the website HendricksCountyParks.org.
MISTY EYES SPRING JAMBOREE — 9 a.m. to 3 p.m. at Avon-Washington Township Park. Includes 5K and 10K Muddy Paws Run, silent auction, games, food, agility dog demonstration, adoptable animals, vendors and crafts, doga with Kristy Carr, and live entertainment. Admission is free. Visit the website MistyEyesJamboree.com for more information.
AUTISM GYMNASTICS CLASS — meets 9 a.m. at The Flip Zone, 880 Andico Road, Plainfield. Free and open to autistic children ages 3 to 12. Call 838-0667 or visit the website TheFlipZone.com for more information.
HENDRICKS COUNTY AIRPORT OPEN HOUSE — 10 a.m. to 2 p.m. at the airport, 2749 Gordon Graham Blvd., south of U.S. 36 on County Road 300 East. Includes tours, airplane rides, flight lessons, and hot dogs and soft drinks. Admission is free. Call 745-4422 or visit the website FlyHCA.com for more information.
HAM RADIO FIELD DAY — 2 p.m. today through 2 p.m. Sunday at the grandstand at the Hendricks County 4-H Fairgrounds and Conference Complex in Danville. Members of the Hendricks County Amateur Radio Society will transmit and receive messages with temporary antennas and emergency power for 24 hours. Free and open to the public.
CONSERVATION CORPS — 2 p.m. at McCloud Nature Park, five minutes south of North Salem at 8518 N. Hughes Road. This free program, geared toward youths 10 and older, focuses on environmental ethics including tree planting, recycling, and community involvement. Call 718-6188 or visit the website HendricksCountyParks.org for more information.