Graham Cave Campground

Graham Cave Campground lies inside the nearly 400-acre Graham Cave State Park in central Missouri and is a fantastic RV campground. Sites are rather basic, with only electrical hookups, but there’s a fair amount of public amenities inside the campground. Flush toilets and showers allow you to conserve the water in your RV rental’s holding tanks. If you need to do a load of laundry while you’re here, there are facilities available for a fee. A dump station on the edge of the campground will be a lifesaver if you need to empty your tanks (the nearest truck stop is about 20 minutes' drive away in Kingdom City).

Since you’ll be camping inside a state park, there’ll be no shortage of outdoor recreational opportunities either. The centerpiece cave is a 60-foot-wide by 100-foot sandstone dome nestled into the side of a hill. Unfortunately, you can’t enter the cave, as it’s a sensitive archeological site that was used by indigenous groups for thousands of years. However, some easy hiking trails ranging from just a few minutes to nearly an hour in length should definitely be explored while you’re motorhome camping at Graham Cave State Park.

The state park is just off Interstate 70, which makes it a convenient place to camp with your RV rental if you want to check out St. Louis (less than a 90-minute drive away) during your stay. While there’s nothing natural about it, you can visit America’s smallest national park while you’re in the city. The 630-foot-tall Gateway Arch, the largest arch of its kind, was designated as a national park in 2018.