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Events

2024 Optimist Santa Parade

Belleville Illinois

Join Camp Ondessonk at the 2024 Optimist Santa Parade! Get in the holiday spirit with us in beautiful downtown Belleville, IL on November 29, 2024, at 10 AM! We're thrilled…
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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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CLOSED TO THE PUBLIC

Camp Ondessonk will be closed to celebrate the Christmas season!  See you next year!

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,…
Read more

2025 Camp Ondessonk Gala Italiano

The Regency O’Fallon 400 Regency Park, O'Fallon, United States

Join us for Gala Italiano, Camp Ondessonk’s bi-annual gala and auction, Saturday, March 1, 2025, at The Regency Conference Center in O’Fallon, Ill.  Through your support of this event, you…
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First Time Camper Open House

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 due to a private event. We apologize for any inconvenience.

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