Meramec Caverns, at 1135 Hwy W near Sullivan, is open daily from 9 AM to 4 PM. The site says the cave stays a cool 60 degrees year round; tour prices are not shown on the page read.Checked October 30, 2026 against the official pages listed under Sources. Prices, hours and seasons change; confirm on the official site before you go.
- CaveType
- SullivanCity
- St. Louis AreaRegion
- See BelowAdmission
Visit Facts at a Glance
| Address | 1135 Hwy W, Sullivan, MO 63080 |
|---|---|
| Phone | 573.468.CAVE (573-468-2283) |
| Hours | As printed when we read it on October 30, 2026: Open daily, 9 AM to 4 PM |
| Open season | Cave tours: no seasonal limits stated. Campground and motel April 1 through October 31; riverboat Memorial Day through Labor Day. |
| Admission | Not published on the page we read |
| Dogs | Not published on the page we read |
| Tickets and reservations | Official reservations page |
| Official site | Meramec Caverns (official) |
What to Know
- Directions point to I-44, Exit 230.
- The tour passes a limestone 'Wine Table' and a 7-story mansion, per the site.
- Zipline runs weekends in May and October, daily June through September.
- Riverboat runs daily Memorial Day through Labor Day, weather permitting.
- Campground and motel open April 1 through October 31.
Facts, Each With Its Source
- Cave temperature: A COOL 60 DEGREES YEAR ROUND! (source)
Directions and Location
1135 Hwy W, Sullivan, MO 63080. Open in Google Maps
Coming Up Near Meramec Caverns
Nothing on our checked calendar yet. We list only events whose dates an organizer has published. See all Missouri events.
Nearby
- Gateway Arch National Park
- Saint Louis Zoo
- City Museum
- Saint Louis Art Museum
- Forest Park
- Anheuser-Busch Brewery Experience
More: Places To Go, state parks and historic sites, St. Louis Area guide, St. Louis Area events.
What We Could Not Verify
Not confirmed
- Tour prices not shown (Rates section had no figures; /rates 404).
- Pet policy and accessibility statement not shown.
- Cave length and opening year not shown.
- County not printed.
- Sources disagree: Float reservation number printed as 1-573-468-3166 but link dials 573-468-6463.
- The map pin is approximate, from OpenStreetMap, not a surveyed entrance.
- Photos: none shown; we place a photo only when it is a true match for the page.
Questions People Ask
What does Meramec Caverns cost?
The official page we read did not publish a price. Check the official site.
What are the hours at Meramec Caverns?
As printed on October 30, 2026: Open daily, 9 AM to 4 PM
Where is Meramec Caverns?
1135 Hwy W, Sullivan, MO 63080.
Sources
- Home, read October 30, 2026
Checked October 30, 2026 by It’s Missouri. Cite this page: Meramec Caverns, itsmissouri.com (https://itsmissouri.com/places-to-go-in-missouri/meramec-caverns/), checked 2026-10-30. Free to quote with a link.