oso grande upcoming events calendar

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  Mon, Aug 17

  Chalk the Walk / 

  Oso Grande Elementary School

  Learn more

  Aug 17, 2026, 9:00 AM – 11:00 AM

  Oso Grande Elementary School, 30251 Sienna Pkwy, Ladera Ranch, CA 92694, USA

  Let's cover our walkways in positive messages, and words of encouragement as we get our campus ready to greet our Grizzlies tomorrow! We hope to see you August 17th from 9am-11am starting in the courtyard.
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  Tue, Aug 18

  First Day of School / 

  Ladera Ranch

  Aug 18, 2026, 8:00 AM – 12:05 PM

  Ladera Ranch, 30251 Sienna Pkwy, Ladera Ranch, CA 92694, USA
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  Fri, Sep 18

  PTA Association Meeting / 

  Oso Grande MPR

  RSVP

  Sep 18, 2026, 8:15 AM – 9:00 AM

  Oso Grande MPR, 30251 Sienna Pkwy, Ladera Ranch, CA 92694, USA

  Don't forget to purchase your PTA membership for $18!