INDIANA BLOOD CENTER BLOODMOBILE — on site 7 a.m. to 3 p.m. in the east parking lot of the Hendricks Regional Health YMCA, 301 Sartori Parkway, Avon. Visit the website DonorPoint.org to schedule an appointment.
B&O EXPRESS — 7 to 11 a.m. at IU Health West Hospital, 1111 Ronald Reagan Parkway, Avon. Includes 5K and 10K courses, the latter on a portion of the paved B&O Trail, as well as live music, refreshments, and a free community health fair. Awards will be given to the top finishers. Cost is $20 per person. Visit the website botrail.org for more information.
HENDRICKS COUNTY HALF MARATHON — presented by Hendricks Regional Health at 7:30 a.m. Also includes a 5K run and 1-mile fun run. Prizes and medals will be awarded. Cost is $75 for the half marathon, $35 for the 5K, or $25 for the fun run. Visit the website DanvilleIndiana.org/HalfMarathon for more information.
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.
DAUGHTERS OF THE AMERICAN REVOLUTION — Wa-Pe-Ke-Way Chapter hosts a membership workshop 9 a.m. to 1 p.m. in the Indiana Room of the Danville Public Library. Call Tracie Curtis at 839-0722 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.
TRI KAPPA FAIR ON THE SQUARE — 10 a.m. to 6 p.m. on the Danville courthouse square. Includes live entertainment and local vendors offering food, crafts, antiques, jewelry, and more.
MONARCH MIGRATION — 2 p.m. at McCloud Nature Park, five minutes south of North Salem at 8518 N. Hughes Road. Learn about the migration patterns, life cycle, and host plant of the monarch butterfly, followed by a guided hike. Free, designed for all ages, and lasts about two hours. Call 718-6188 or visit the website HendricksCountyParks.org for more information.