About the Summer Program

2024 Summer Registration will open to the public on Monday, March 18, 2024 at noon in myCedarRiver. Inquire below to set up your account and to hear about when summer registration goes live!

Please check back here for updates as program registration grows closer.

Our summer programs run daily 9-3:30 (extended care available from 3:30 – 5:00 PM; pickup between 4:45 - 5:00 PM) from June 17 – August 16, 2024. Our summer programs serve children in early childhood and elementary. For full information about our offerings, please see our Summer Brochure.

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  • Early Childhood Summer Program

    This program includes Montessori work time, a 20 minute daily swim lesson with a certified instructor, great indoor and outdoor activities, and crafts. Designed for students from age 4 through 6 (including students moving into 1st grade in the fall), this program supports academic, social, emotional, and physical development while taking full advantage of our wonderful campus in the summer months. Special projects in the afternoon for students entering 1st grade. Sign up for one week, a few, or all nine weeks! Non-CRMS students must be 4 by June 30, 2024. Click on Summer Brochure (above) for more details.
  • Elementary Summer Program

    For students entering 2nd-6th grades: Experience a classic summer of adventure and discovery as we team up to learn about the world. From adventures on campus to exploring the hills, rivers, and ocean around us, we’ll ask big questions and search high and low for the answers. Join us on one adventure or all nine! Daily swim lessons included. Click on the Summer Brochure (above) for more details.

About Cedar River Montessori

Located on 12 acres of forest, wetland, and pasture, Cedar River Montessori is proud to center anti-racist, anti-bias, accredited Montessori education for students from early childhood through middle school in south King County. Learn more about our mission and values here. Summer gives us a chance to explore both on campus and afield, all with daily swimming! We look forward to spending the summer exploring our 12 acre campus, together!


Early Childhood and Elementary participants receive a daily swim lesson (20-30 minutes) in a small group by a certified instructor (conditions permitting). We use the Red Cross curriculum and provide parents with a record of progress at the end of the summer.