Onondaga Cave State Park

4/18/2026 | Onondaga Cave State Park | Leasburg, MO. Onondaga Cave State Park is hosting a series of night sky viewing events again in 2026. Join astronomy enthusiast Joe Parish in the visitor center parking lot on one or more of the dates listed below to view the cosmos with a high-powered telescope. These events […]

4/4/2026 and 4/5/2026 | Onondaga Cave State Park | Leasburg, Mo. Come out to Onondaga Cave State Park during Easter weekend to take part in the park's Easter Eggstravaganza event. This family-friendly event is free and open to the public, and there is no need to register. Just show up and enjoy! The fun will […]

3/21/2026 | Onondaga Cave State Park | Leasburg, MO. Onondaga Cave State Park is hosting a series of night sky viewing events again in 2026. Join astronomy enthusiast Joe Parish in the visitor center parking lot on one or more of the dates listed below to view the cosmos with a high-powered telescope. These events […]

1/1/2026 | Onondaga Cave State Park Join park staff for a guided hike of Vilander Bluff Trail on New Year's Day. This moderately difficult hike will cover 1.3 miles over the course of about two hours.  The hike will start at the Vilander Bluff Trail trailhead, which is about 30 minutes east of the main […]

10/24/2025 to 10/25/2025 | Onondaga Cave State Park | Leasburg, MO Join us at Onondaga State Park for our annual Halloween event: the Frightfully Fun Fest! This year’s event will take place on Friday, Oct. 24, and Saturday, Oct. 25. On Friday, we will show a family-friendly spooky movie at the campground amphitheater. The showing […]

10/18/2025 | Onondaga Cave State Park | Leasburg, MO Onondaga State Park is hosting a series of seven stargazing programs in 2025. The public is invited to meet in front of the visitor center to view the unobstructed night sky and learn about some of the objects that can be seen. Astronomy experts will be […]

10/12/2025 | Onondaga Cave State Park | Leasburg, MO Amateur photographers are invited to join park staff on a photo tour of Onondaga Cave. Sponsored by the Onondaga Friends Association, these extended tours include extra time for photographs to be taken at specific locations along the tour route. Each tour will begin at the visitor […]

9/20/2025 | Onondaga Cave State Park | Leasburg, MO. Onondaga State Park is hosting a series of seven stargazing programs in 2025. The public is invited to meet in front of the visitor center to view the unobstructed night sky and learn about some of the objects that can be seen. Astronomy experts will be […]

9/14/2025 | Onondaga Cave State Park | Leasburg, MO Amateur photographers are invited to join park staff on a photo tour of Onondaga Cave. Sponsored by the Onondaga Friends Association, these extended tours include extra time for photographs to be taken at specific locations along the tour route. Each tour will begin at the visitor […]

9/13/2025 | Onondaga Cave State Park | Leasburg, MO The Onondaga Friends Association is hosting a series of nighttime tours of Cathedral Cave. These unique tours are offered monthly from May through September. Each tour consists of a guided walk to and through the cave. Tours depart from the campground woodlot at 8:30 p.m. and […]

9/6/2025 | Onondaga Cave State Park | Leasburg, MO Onondaga Cave State Park is hosting a series of off-trail tours of Cathedral Cave again in 2025. These tours are perfect for people who want to get a more intense cave experience, one that goes beyond the lighted tour with rails and trails. Each tour is […]

8/23/2025 | Onondaga Cave State Park | Leasburg, MO. Onondaga State Park is hosting a series of seven stargazing programs in 2025. The public is invited to meet in front of the visitor center to view the unobstructed night sky and learn about some of the objects that can be seen. Astronomy experts will be […]