The 12th annual Hansen Dam Sprint and Olympic Triathlon takes place on Sunday, Aug. 21.

The event begins with the Triathlon competition at 6:30 a.m. At approximately 7:30 a.m., “Superhero” 5K and 10K runs begin. A kids’ 1K run is scheduled to start at 10:15 a.m. Runners are invited to dress as their favorite superhero.

Online registration is available at hdtri.com, and will continue until Friday, Aug. 19, until 11:59 p.m. On site registration is available at the Hansen Dam Aquatic Center on Saturday from 10 a.m. to 4 p.m., and Sunday from 5:30 a.m. to 7 a.m.

The Hansen Dam Aquatic Center is located at 11798 Blvd., Lake View Terrace. For more information, call (818) 899-2649 or visit www.hdtri.com.