O'Day Park

Notice: Temporary Closure at O'Day Park.
Please be advised that the following amenities at O'Day Park will be closed temporarily for maintenance:

The swing set at the back of Adventure Playground will be closed through May 24, 2024

O'Day Park, O’Fallon’s newest gem, is nestled in the countryside just off Highway DD. The 57-acre park offers the area's first adventure playground, a truly unique play experience for kids of all ages. The park also is home to O'Day Lodge, a premiere meeting, banquet and conference center, and outdoor amphitheater. All this, plus miles of paved and natural paths (some paths are still in development). Group camping for Scout and youth groups also is available.

O'Day Lodge

For those special occasions, educational or corporate events, O'Day Lodge at the southwest tip of the park offers all the amenities including state-of-the-art technology and class or meeting space, and an outdoor amphitheater for gatherings. Depending on the arrangement of the table layout, between 250 and 320 can be seated in the hall. Information and costs for renting the facility can be found on the O'Day Lodge webpage.

Beautiful centerpieces adorn the tables for this couple's wedding

With acres of green space and incredible amenities, O'Day Lodge has become one of O'Fallon's best features

Bride and groom embrace for the first dance

O'Day Lodge is striking from every angle, and is the perfect home for weddings and events.

O'Day Lodge's spacious deck overlooks the Amphitheater

The popular Daddy-Daughter Dance is held every year at O'Day Lodge

A groom sweeps his bride off her feet outside of O'Day Lodge

O'Day Lodge has become one of the most sought-after wedding venues in St. Charles County

Tables are decorated for a reception at O'Day Lodge

O'Day Amphitheater is prepped to host an outdoor wedding

Adventure Playground & Pavilions

The pace picks up with the Adventure Playground, where unique play equipment invites kids to climb the rope course, hang together on group swings and giggle on the wooden log climbers and slides.

Watch the kids engaged in water play in the O’Day Creek Experience Area. Take a lunch break at a picnic table. Let your teens meet for some social time in the Teen Overlook. Plan to rent the Family Pavilion ahead of time for a reunion. Find the Terminus at the eastern end of the park and relax in the shady shelter.

Parents push children on a saucer-style swing

Moms take turns sending their children down a roller slide

A boy climbs on netting at O'Day Park playground

Kids playing on a hillside at O'Day Park

Climb down the water feature to discover even more exciting play features

The water feature offers a fun way to cool down during the summer months

The Adventure Playground offers plenty of thrills and excitement

O'Day Amphitheater

Gather on the hillside below O'Day Lodge to listen to free concerts, watch educational and theater performances, and experience other new and interesting outdoor events. If you are booking O'Day Lodge for your special occasion or event, you may optionally add use of the O'Day Park Amphitheater at the time of booking. Information and costs for renting the facility can be found on the O'Day Amphitheater webpage.