Is Campground first-come first-served or reservation?

Campground accepts online reservations. We recommend booking in advance, especially during peak season (typically summer weekends). Use campsite alerts to get notified when spots become available.

Can I see photos of campsites at Campground before I book?

Yes! Campground has 16 campsite photos on Outdoorithm, contributed by campers who've stayed there. Browse real photos of individual sites to see what to expect before you reserve. You can also add your own photos after your trip to help the next family plan theirs.

What is the best time to visit Campground?

Campground is open On-season typically Apr 1 through Oct 31; off-season Nov 1 through Mar 31. Water and showers are usually available in the on-season; check the park for specific seasonal operations.. The best time to visit depends on your preferences—summer offers the warmest weather and most activities, while spring and fall provide fewer crowds and milder temperatures. Check current conditions before your trip.

Are there showers at Campground?

Yes, Campground has shower facilities available for campers. Check the amenities section for details on hours and any fees.

Are dogs allowed at Campground?

Yes, pets are allowed at Campground. Dogs must typically be kept on a leash (usually 6 feet or shorter) and under control at all times. Be sure to clean up after your pet and check for any breed or size restrictions.

What amenities are available at Campground?

Campground offers: Restrooms, Showers, Potable Water, Dump Station, Electrical Hookups, Water Hookups, Pets Allowed. See our detailed campground page for the full list of facilities and features.

What activities can I do at Campground?

Popular activities at Campground include Hiking, Fishing, Swimming, Biking, Boating, Wildlife Viewing. The surrounding area offers plenty of outdoor recreation opportunities for all skill levels.

Campground

4.64

123 reviews

7556 Highway H, Leasburg, MO 65535-9136, United States

Real-Time Availability

Select a month, then check for open campsites

Quick Facts

Price

Varies

Booking

Reservable

Sites

Varies

Season

On-season typically ...

Cell

No Service

Pets

Pets Allowed

Partial HookupsShowersWiFi

Book on Missouri State Parks Official Website

Real-Time Availability

Select a month, then check for open campsites

Quick Facts

Price

Varies

Booking

Reservable

Sites

Varies

Season

On-season typically ...

Cell

No Service

Pets

Pets Allowed

Partial HookupsShowersWiFi

Book on Missouri State Parks Official Website

Campground

No fees available

Campsite Fees

Nightly camping rates vary by campground and site type; on- and off-season rates apply. Reduced camping rates are available for seniors, people with...

No paid fee categories listed.

Get Notified When Available

We'll monitor this campground and alert you the moment sites become available.

Free to start · paid plans add 2-min scans

256,000+ sites monitored · Email, SMS, or in-app notifications

Learn more about alerts →

Share this campground

Missouri State Parks

Provider

573-245-6576

I manage this campground

Plan a trip to Campground

Compare with similar sites, watch availability, and build a packing list — Camp Sage handles all of it.

Campground Map

7556 Highway H, Leasburg, MO 65535-9136, United States

No map location available

Weather at Campground

Best Time to Camp at Campground

Fall brings the best mix of comfortable temperatures (daytime highs mid-50s to mid-70s°F, nights in the 40s), fall foliage, and lighter crowds. Cave tours remain atmospheric while river fishing and floating stay productive through October. The campground runs full amenities April through October; winter mode (November–March) offers fewer services and appeals to experienced campers who don't mind cooler conditions. Spring and summer see more families, with hot showers and water hookups available but higher humidity and busier cave-tour schedules.

Best

Summer (Jun-Aug)

Peak season with warm weather, perfect for water activities. Book early.

Planning Tips

Operating Season: On-season typically Apr 1 through Oct 31; off-season Nov 1 through Mar 31. Water and showers are usually available in the on-season; check the park for specific seasonal operations.

About Campground

Onondaga Cave State Park sits in the Meramec River valley where a National Natural Landmark cave opens beneath wooded bluffs. The campground offers tent and RV sites (some with 50-amp electric and water) and access to well-guided cave tours, river fishing, and hiking trails. Cell service is limited or absent across most of the park.

Campground accommodates both tent and RV campers and includes primitive walk-in/tent-style sites as well as sites with hookups for larger rigs.

Weather and SeasonsFall brings the best mix of comfortable temperatures (daytime highs mid-50s to mid-70s°F, nights in the 40s), fall foliage, and lighter crowds. Cave tours remain atmospheric while river fishing and floating stay productive through October. The campground runs full amenities April through October; winter mode (November–March) offers fewer services and appeals to experienced campers who don't mind cooler conditions. Spring and summer see more families, with hot showers and water hookups available but higher humidity and busier cave-tour schedules.

Natural Features and SceneryThe park straddles a deep, tree-covered valley along the Meramec River. Onondaga Cave descends into active formations. Massive stalagmites, hanging soda straws, and drip features still growing after millennia. Above ground, limestone bluffs frame the river's narrow banks. The Blue Heron Trail climbs to overlooks and a small waterfall; Deer Creek Trail threads through hardwood forest where maples and oaks turn color each fall. The Meramec itself draws paddlers and smallmouth-bass anglers past cliff faces and gravel bars.

Geological RegionMeramec River valley; Onondaga Cave (National Natural Landmark)

Scenic ViewsPanoramic views of the Meramec River from Vilander Bluff and striking underground vistas within Onondaga Cave formed by stalagmites, stalactites and flowstones.

Best Campsites

Curated by campers, for campers

Reveal picks

Reserving a campsite

Stay Limit

Camping is limited to any 15 days within a 30-consecutive-day period at any one park.

Tents

Tents are allowed

RV vehicles

RV vehicles are allowed

Primitive

Primitive camping is allowed

Reservable

Reservations are allowed

Reservation PlatformsMissouri State Parks reservation system (online reservation link on park page; UseDirect-based platform)

Best CampsitesSites 1–13 are primitive tent pads with lantern hooks and grills. Other sites accommodate RVs up to 34-foot fifth wheels with 50-amp electric and water hookups. Reviewers note clean, level sites mowed short to limit ticks. The campground runs in a single loop with sites on both sides. Tight turns make access tricky for large Class A rigs.

Need help booking Campground?

Reservation tips, booking windows, and free cancellation alerts.

When to Book

Find your booking window

Cancellation Alerts

Free alerts for this campground

Amenities available

Park offers campground services including showers, flush toilets, potable water, electric and water hookups at some sites, and a dump station; Wi‑Fi is available at the visitor center only. Cell service is limited or absent throughout much of the campground.

Showers

Potable water

Electricity hookups

Water hookups

WiFi

Flush toilets

I manage this campground

Activities you can enjoy

Onondaga Cave State Park centers on cave tours and also offers river access (Meramec River) for fishing, boating and swimming, plus multiple hiking and biking trails and interpretive programs. Picnicking and park programs are also available.

Hiking

Fishing

Swimming

Biking

Boating

Wildlife viewing

Planning your trip?Check out our camping packing checklist

Policies & Safety

No Cell ServiceCell phone service is not available at this campground. Plan accordingly for emergencies and download offline maps before arriving.

Trip Planning Tools

Set an AlertGet notified when sites open up Check WeatherHistorical weather data Gear for This TripMatched gear recommendations Packing ListCustomizable checklist

Questions & answers

Researching this campground? Ask anything — other campers and our team will weigh in. No visit required.

Tips from campers

Short heads-ups about the road in, gear quirks, timing, and more. You don't have to have been here to share what you know.

Reviews

From Booking Sources

4.6

123 reviews

Top-Rated

Campground is top-rated, placing it in the top 15% of campgrounds based on reviews

Visitors consistently praise the cave tours (well‑guided, outstanding formations) and the park’s wooded, quiet campground with river access and good trails. Common drawbacks cited are limited cell service and the absence of full sewer hookups; some visitors note narrow access roads that can be difficult for large rigs.

Review Summaries

Based on 123 reviews

What Campers Love

Amazing, well‑run cave tours with knowledgeable guides; clean campsites and hot showers; easy access to Meramec River for fishing, boating and swimming; scenic hiking trails and peaceful, wooded...

Based on 123 reviews

Pro Tips & Recommendations

Reserve campsites in advance. Follow park directions and stay on Hwy H to avoid long detours reported by some visitors. Expect limited cell service (use visitor center Wi‑Fi if needed). For cave...

Based on 123 reviews

Camper Quotes

“One of the best caves I have seen.” — guest review. “Great Campground—nice trails and the cave tour was awesome—river access on Meramac.” — guest review.

Based on 123 reviews

Outdoorithm Community

Be the first to review this campground

Every adventure creates another. Share what you learned so the next camper feels a little more prepared heading out.

Go if

Families and couples who want a guided underground tour as the trip's centerpiece, plus river fishing for smallmouth bass and fall color hikes on the Blue Heron Trail. Book early on Missouri State Parks' reservation system; sites with 50-amp electric and water fill fast.

Skip if

Full-timer RVers who need sewer hookups will have to rely on the dump station, and anyone counting on cell signal will be offline across most of the campground. Large rigs should also know the access roads run narrow.

Campgrounds

Onondaga Cave State Park

Campground