Coursers choose from a wide variety of engaging activities (arts, sciences, hobbies, etc.) and a range of sports (soccer, swimming, yoga, and more) to build a personal schedule that matches their individual interests.

The care and keeping of domestic animals. What everyone needs to know.

Orienteering, foraging, tool-making, fishing, rock climbing.

Learn the tools for making whimsical wooden creations.

Keep active! Fun and challenging group P.E. games.

Learn the basics of this competitive fast-paced sport.

Make this a productive summer for you at the MICDS Youth Leadership Institute (YLI). Do you know a rising 7th to 10th grader looking to take their leadership skills to the next level? Look no further! YLI’s summer program is designed to empower young leaders to harness and develop the skills and confidence needed to make a positive impact in their community and prepare for the next steps in their education and beyond.

Roll up your sleeves, put on your makers cap, and get ready to create! This is our most hands-on camp! Together, campers will build a geodesic dome large enough to sit in. Who can build the strongest bridge? Can your bridge withstand the shake rattle and roll challenge? Explore the world of birds and beasts with bird feeder building and our super bug investigation. Speaking of birds, what did Hooty the owl have for dinner? A mouse? A Squirrel? A Frog? Kids will dissect owl pellets and reconstruct Hooty’s dinner. Enter the Mad Science chemistry lab and mix, mash, and brew concoctions to create cool sidewalk chalk and bath fizzers! Assemble and control pulleys, levers, catapults, simple machines, and megapinchers! Campers will discover the wonders of photography and make their own chromatography-dyed T-shirt. It’s a week packed with non-stop science fun! Complimentary after-care is included from 3:00 pm to 4:00 pm. Additional before and after-care is available through Ballwin Parks and Recreation.

Camp Ondessonk's traditional summer camp for children ages 10-15 years old. Traditional summer camp provides exceptional outdoor progamming, including horseback riding, archery, caneoing, and more.

Camp Ondessonk's traditional summer camp for children ages 10-15 years old. Traditional summer camp provides exceptional outdoor progamming, including horseback riding, archery, caneoing, and more.

Camp Ondessonk's Mini Camp for children ages 8-10 years old. Mini Campers receive nearly constant guidance from our staff while boating, swimming, riding ponies, and more.

Camp Ondessonk's Mini Camp for children ages 8-10 years old. Mini Campers receive nearly constant guidance from our staff while boating, swimming, riding ponies, and more.

Mini-Camp Explorers offers adventurous 8 – 10-year-old children an extended experience building upon our popular Mini Camp program. Mini Camp Explorers provides boating, swimming, riding ponies, and more.

Love horses? Love Camp O? Want both? Horse Camp is for you.

Love horses? Love Camp O? Want both? Horse Camp is for you.