Camp Ondessonk

OPEN CAMPING
2026-09-21 - 2026-10-01, 2026-10-05 - 2026-10-08, 2026-10-12 - 2026-10-14, 2026-10-19 - 2026-11-18 | Camp Ondessonk, 3760 Ondessonk Rd, Ozark, IL, 62972, 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, and are within a short walk to a shower house.

For additional information, or to make your reservation, visit the camping section of our website!
Feel free to contact the Camp office at 618-695-2489 with any questions.

Day Field Trips – Monday and Tuesday
Overnight School Field Trips – Wednesday through Friday
Unit Cabin and Tent Camping – Wednesday through Sunday
St. Noel and Fournie Lodge Stays – Monday through Sunday
Camp Ondessonk is closed to overnight groups on Sunday nights
Sorry, no wedding ceremonies or receptions allowed on Camp property

CLOSED TO THE PUBLIC
2026-10-02 - 2026-10-04
Camp is closed for a private event. Campers and Day Hikers are not allowed during this time. Sorry!

MOTHER DAUGHTER WEEKEND
2026-10-02 16:00 - 2026-10-04 11:00 (America/Chicago)
Moms, daughters, and grandmas are invited for a weekend of Camp fun, crisp evenings around the campfire, and sharing a love for the outdoors with the women and girls in their lives. Gaga, Handicrafts, Canoeing, and other Camp activities will be open. Adventure activities (Challenge Course and Trail Rides) are available for an additional fee to those over 10 years old and weighing under 225 lbs. Mass is available on Saturday evening.
The weekend fee of $105 per person includes unit lodging, all meals on Saturday, breakfast on Sunday, and a Mother-Daughter t-shirt. Ages 3 and under are free.
Limited lodging upgrades to St. Noel or the Fournie Lodge are available for an additional cost.
Register online or by paper form.
Registration deadline: September 23!
Cancellation Policy
Cancellations requested on or before the posted registration deadline date will receive a full refund. Refunds are not issued after the registration deadline date has passed; however, registration fees can be transferred to other guests. Please contact the office to transfer payment to another guest for the same event.
Recommended Packing List
Here are some recommended clothing and equipment items to help you prepare for your weekend!

FALL STABLE ROUND UP – Gardening, Restoration & Preservation
2026-10-09 - 2026-10-11
Every fall, volunteers attend the annual Fall Stable Round-Up Weekend to contribute their time & talent to Camp Ondessonk’s stable program and grounds. Typical projects include maintaining tack and equipment, fixing fence, landscaping, trail maintenance, etc. Meals provided include breakfast, lunch, and dinner on Saturday, as well as breakfast on Sunday. Unit lodging is free or pay $30 to upgrade to St. Noel.
This weekend is open to invited guests only. Invitations will be emailed in early September. All volunteers must RSVP. To request an invitation, or to receive additional information, email registration@ondessonk.com.
Many thanks to all the volunteers who return season after season to contribute expertise and hard work! Can’t come, but want to help? Go to https://ondessonk.com/giving/ways-to-give to donate toward supplies!

CLOSED TO THE PUBLIC
2026-10-09 - 2026-10-11
Camp is closed to campers and hikers during this time because we are hosting a private event! Sorry!

FALL LODGE REUNION
2026-10-09 19:00 - 2026-10-11 11:00
Fall Lodge Reunion is a service-focused experience at Camp Ondessonk. Reunite with friends as you help Camp prepare for the upcoming winter! Lodge members stay in units and participate in service projects throughout the day on Saturday. Be prepared to work hard during the day and enjoy the beauty of Camp with fellow Lodge members at night. Adult supervision is provided by Camp Ondessonk summer staff.
Check-in on Friday between 7-9 pm at the Trading Post. Check out on Sunday between 10-11 am at the covered bridge. Meals provided include breakfast, lunch, and dinner on Saturday, as well as breakfast on Sunday. Mass will be held on Saturday evening. Please bring appropriate work clothes along with work gloves and closed-toed shoes for the work project.
FREE! Active Lodge membership required. Pay your dues online to renew your membership.
Register online today!
Registration Deadline: September 30, 2026

CLOSED TO THE PUBLIC
2026-10-15 - 2026-10-18
Camp is hosting a private event. Campers and hikers are not allowed at this time. We apologize for any inconvience!

FAT TIRE FESTIVAL
2026-10-15 - 2026-10-18
Southern Illinois Fat Tire Festival (FTF) is happening again for the 22nd year, one of the best MTB events in the entire MidWest!
This event is hosted by Bike Surgeon, located in O’Fallon, IL. Go to the Fat Tire Festival website to register today!
