The Elk Grove, Calif., native also celebrated her 85th birthday by jumping out of a plane.
The plane that Zimmerman used for her jump on Friday took off from the Jump Center at the Lodi Airport.
Zimmerman wasn’t alone in her dive as her doctor, her doctor’s daughter and her 69-year-old son Gary also took the plunge.
[CSN Bay Area]
Swim Week Miami Beach 2014 [PHOTOS]