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Events

OPEN CAMPING

Join us for an open camping weekend! Please fill out a Reservation Request or contact the Ondessonk Office with questions at (618) 695-2489. Thank you!

FREE! Young Adult – Advent Reflection Retreat

As you journey closer to Christmas, join the Ondessonk Retreat Team for a weekend with a variety of readings, discussions, rituals, and reflections. This is a perfect weekend to take…
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Office Closed for Christmas

The Camp Ondessonk office will be closed for the Christmas holidays starting Thursday, December 22nd, 2022 and will resume activity Tuesday, January 3rd, 2023. If you would like to hike…
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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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Learning More About Camp Webinar

The Learning More About Camp Webinar is an excellent way for both new and returning camper families to hear about Camp Ondessonk‘s summer camp planning for 2023 and see a…
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2023 Camp Ondessonk Gala

Join us for the 2023 Camp Ondessonk Gala – The Roaring 20s on Saturday, March 4, 2023 at the Four Points by Sheraton in Fairview Heights, Illinois. Through your support…
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Learning More About Camp Webinar

The Learning More About Camp Webinar is an excellent way for both new and returning camper families to hear about Camp Ondessonk‘s summer camp planning for 2023 and see a…
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Re-Ignite U Retreat

Youth are the future of the Catholic Church. Pope Francis calls all youth to take a stand in leading the Church to a new chapter. Come join other youth for…
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First Time Camper Open House

The First Time Camper Open House 2023 is the best way to introduce potential campers (and nervous parents) to the Ondessonk experience. Families will have a chance to meet leadership…
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Office Closed for Easter

The Camp Ondessonk office will be closed for the Easter holiday starting Friday, April 7, 2023 and will resume activity Tuesday, April 11, 2023. If you would like to hike…
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