• CLOSED TO THE PUBLIC

    We are closed to the public due to a private event. We apologize for any inconvenience.

  • FATHER SON WEEKEND

    Camp Ondessonk sets aside one weekend each year for this specialty weekend designed for the guys. For Father Son Weekend, men are invited to join us for a weekend of tromping through the woods, spending evenings around the campfire, and sharing a love of the outdoors with the boys in their lives. Join us for…
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  • OPEN CAMPING

    Get the true Ondessonk camping experience by sleeping among the trees or under a waterfall!  All cabin units have fire pits, benches, picnic tables, a potable water spigot, an outhouse,…
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  • 15th Annual Ondessonk Trail Races

    Camp Ondessonk 3760 Ondessonk Rd, Ozark, IL, United States

    Join us on Saturday, May 3, 2025, for Camp Ondessonk’s 15th Annual Trail Races – this year with a spring backdrop! Breathtaking blossoms and colors will be on display throughout our beautiful forests, canyons, and pastures. Choose between our 5k Fun Run and the more challenging Manchester Trail 10k. The races begin at 10:30, and…
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  • First Time Camper Open House

    Camp Ondessonk 3760 Ondessonk Rd, Ozark, IL, United States

    The First Time Camper Open House is the best way to introduce potential campers (and nervous parents) to the Ondessonk experience. Families will have a chance to meet leadership staff…
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  • CLOSED TO THE PUBLIC

    We are closed to the public for our summer camp season.  Please come back in mid-August!

  • Ozark Community Yard Sale

    Camp Ondessonk 3760 Ondessonk Rd, Ozark, IL, United States

    Camp O and the surrounding Ozark Community - Camp will be selling barn supplies, tack, equine tools, china, office supplies and furniture, computer equipment, garden supplies, power tools, hand tools,…
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  • Ainad Shriners Parade 2025

    Belleville Illinois

    🎉 Join Camp Ondessonk in the Ainad Shriners Parade! 🎉 We’re inviting all Camp O friends, families, alumni, and supporters to walk with the Camp Ondessonk Float during the Ainad…
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  • FALL FAMILY CAMP

    The entire family is invited to experience a taste of Summer Camp. Many of our traditional Summer Camp activities will be open: Boating, Archery, Handicrafts, Climbing Wall, and even Swimming for families to enjoy the last days of summer. The weekend fee includes unit lodging, all meals on Saturday, breakfast on Sunday, and a themed…
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  • OPEN CAMPING

    Camp Ondessonk 3760 Ondessonk Rd, Ozark, IL, United States

    Get the true Ondessonk camping experience by sleeping among the trees or under a waterfall!  All cabin units have fire pits, benches, picnic tables, a potable water spigot, an outhouse,…
    Read more