Onondaga Cave State Park - United States
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About Onondaga Cave State Park
RV quick facts for Onondaga Cave State Park
| Detail | Information |
|---|---|
| Max RV length | Sites accommodate RVs up to about 45 ft in the basic and electric loops; verify at booking |
| Full hookups | No full hookups; electric (20/30/50 amp) sites available, water at central fill stations |
| Dump station | Dump station on-site at the campground |
| Generator hours | Quiet hours 10 p.m. to 7 a.m.; generators must not disturb neighboring sites |
| Cell service | Limited and carrier-dependent in the Meramec River valley |
| Reservation window | Up to 12 months in advance via Missouri State Parks reservations (icampmo1.usedirect.com) |
| Road restrictions | Access road (Hwy H) is paved but narrow and winding; no tunnels or major grades |
| Pets | Leashed pets welcome in campground and on surface trails; pets not permitted on cave tours |
Featured RV rentals for Onondaga Cave State Park
Best time to visit Onondaga Cave State Park
Late April through October is the prime window for RV travel, when the campground, visitor center, and cave tours operate on a full schedule. May, June, September, and October offer comfortable temperatures, lower humidity, and thinner crowds than the July and August peak. Spring brings wildflowers and higher river levels ideal for floating, while fall delivers vivid Ozark foliage along the Meramec bluffs. Winter visits are limited because cave tours and camping services run on a reduced schedule.
Campground closed for the season; cave tours on reduced winter schedule
Cold and wet; campground closed, day-use only
Campground typically reopens for the season in mid-March; variable weather
Spring wildflowers; occasional river flooding on the Meramec
Excellent camping weather; thunderstorms possible
Warm and humid; book sites early
Peak season; hot, humid, and busy
Peak season; consider electric sites for AC use
Mild shoulder season; lower crowds
Peak fall foliage along the Meramec bluffs
Campground closes for the season in late fall
Campground closed; day-use only with limited cave tours
Things to do at Onondaga Cave State Park
- Onondaga Cave Tour EasyRV parking available
A guided walking tour of Onondaga Cave showcases active stalactites, stalagmites, flowstones, and the Lily Pad Room, all within a National Natural Landmark. Tours depart from the visitor center and follow paved, lit pathways. RV parking is available in the main visitor center lot.
- Cathedral Cave Lantern Tour ModerateRV parking available
Cathedral Cave is a less-developed cave toured by handheld lantern, offering a more rustic underground experience than Onondaga Cave. The route involves uneven footing and a walk from the trailhead to the cave entrance. Reservations are recommended in peak season.
- Ozark Trail, Courtois Section (North Terminus) ModerateRV parking available
The park anchors the northern end of the Ozark Trail, a long-distance path that threads through the Missouri Ozarks. The Courtois Section starts at Onondaga Cave State Park and winds through the Huzzah Conservation Area into the Mark Twain National Forest, with the broader trail spanning about 230 miles in 13 sections open to hiking, biking, and equestrian use. Day hikers can sample the first few miles from trailhead parking near the park. fs.usda.gov/r09/marktwain/recreation/trails/ozark-trail-courtois-creek-section
- Meramec River Float and Fishing EasyRV parking available
The Meramec River runs along the park and offers canoeing, kayaking, tubing, and smallmouth bass fishing. A boat ramp within the park provides easy put-in access. Local outfitters near Leasburg shuttle paddlers for half-day and full-day floats.
- Deer Run Trail EasyRV parking available
Deer Run Trail is a roughly 2.5-mile loop through upland oak and hickory forest with connections to the campground. The path is well marked and suitable for most hikers. It is a convenient option for RV campers who want a quick nature walk from their site.
- Blue Heron Trail EasyRV parking available
Blue Heron Trail is a short interpretive path that leads from the visitor center toward the Meramec River and a wildlife viewing platform. The trail is mostly level and partly accessible. It offers excellent birdwatching, including herons and migratory songbirds.
- Vilander Bluff Natural Area Strenuous
Vilander Bluff Natural Area protects dolomite bluffs rising above the Meramec River with rugged glade and woodland habitat. Access requires a longer hike from within the park, and the terrain is uneven. The overlook rewards visitors with sweeping river views.
- Visitor Center and Nature Exhibits EasyRV parking available
The park visitor center features exhibits on cave geology, karst ecology, and the human history of Onondaga Cave. It also houses the ticket counter for cave tours. Large paved parking accommodates RVs and tow vehicles.
Top Hosts near MO, United States
Beautiful RV, very spacious. Owners were very sweet and fast to respond to communication.
Lorelei B. - May 2025
We rented this camper for a weekend trip. Ralph is very nice & responded quickly to our questions. He was very accommodating to our pick up & drop off times. The camper was just like the pictures except the outside was faded a little which did not matter to us. It was clean and well taken care of. It was well stocked with cooking/eating needs. It even had a coffee maker, toaster, condiments, outdoor chairs, & much more. The bed was very comfy. I would rent it again.
Tracy D. - May 2025
Made sure we knew everything we needed to know! Great experience
Skyler A. - Aug 2025
Donna was prompt with the delivery and informative with the operation. I would use her services again.
David Y. - Aug 2025
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RV Rentals Onondaga Cave State Park
Onondaga Cave State Park, MO, United States
How to get to Onondaga Cave State Park
From St. Louis, take I-44 west roughly 75 miles to the Leasburg exit (Exit 214), then head south about 7 miles on Highway H to the park entrance, a drive of around 90 minutes. Rolla is about 45 miles west via I-44, and Springfield is roughly 160 miles southwest. RV drivers should note that Highway H is a narrow, winding two-lane road with rural grades and limited shoulders, so larger rigs should use caution; the nearest major airport for fly-and-rent travelers is St. Louis Lambert International (STL), about 90 miles northeast.
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