Nashville is a useful campervan base for one concrete reason: a National Park Service road with no commercial traffic and free campgrounds begins at the edge of the city, and two more national parks sit at the far ends of the interstates that cross it.
The Natchez Trace Parkway starts here
The parkway runs 444 miles between Nashville and Natchez, Mississippi, crossing Tennessee, Alabama and Mississippi. Commercial vehicles are prohibited on it and the speed limit is 50 mph unless otherwise posted, which makes it a fundamentally different drive from I-40 or I-65. It is also a designated bicycle route, so you will be sharing the lane. Driving the whole length in one direction means leaving the van at the far end, which is a separate arrangement covered in our guide to one-way RV rentals.
Its size limits are generous for anything in the campervan class: 55 feet overall including a tow vehicle, and 14 feet of height. The five lowest underpasses are marked between 14 feet 1 inch and 14 feet 10 inches, so a high-roof van has clearance. Six pulloffs are posted closed to RVs, among them Mangum Mounds with an 11 foot 6 inch bridge clearance, and others that lack a turnaround loop.
Three campgrounds sit directly on the parkway. All three are free, primitive and first-come, first-served, with no reservation system:
- Meriwether Lewis, milepost 385.9, 32 sites. This is the one that matters from Nashville, and it has potable water and flush toilets.
- Jeff Busby, milepost 193.1, 18 sites.
- Rocky Springs, milepost 54.8, 22 sites.
None of them have electricity, showers or dump stations, and the Park Service caps stays at 14 days per campground per calendar year. The Park Service flags March to April and October to November as the stretches when these campgrounds fill quickly, which is the argument for rolling in mid-afternoon rather than at dusk. If you want hookups, you will be leaving the parkway to find them.
Great Smoky Mountains, east on I-40
There is no entrance fee, but every vehicle parked for more than 15 minutes needs a parking tag, sold by the day, week or year through Recreation.gov, at visitor centers, and at credit-card machines in the park. Tags are tied to a license plate, so buy against the rental's plate. From Nashville the standard approaches are I-40 Exit 407 to TN-66 South through Sevierville and Pigeon Forge for the Gatlinburg entrance, or I-40 Exit 386B near Knoxville for the quieter Townsend side. If the park is the whole trip rather than one stop on it, campervan rentals near the Smokies cut out the drive across the state.
Frontcountry campsites require advance reservations through Recreation.gov. Cades Cove and Smokemont stay open year-round; everything else, Elkmont included, is seasonal. Hookups barely exist here. Only some sites at Look Rock have electric and water, and the 5 amp outlets at Cades Cove, Elkmont and Smokemont are designated for medical equipment only, so do not plan your power around them. Dump stations are at Cades Cove, Cosby, Deep Creek, Look Rock and Smokemont; from Elkmont the nearest sits across from Sugarlands Visitor Center, roughly six miles away. Generator quiet hours run 8pm to 8am, and RV sites take one RV or trailer each.
The Cades Cove Loop is an 11-mile one-way road open sunrise to sunset, and it closes to motor vehicles on Wednesdays, typically May through September. Allow two to four hours if you do take the van around it.
Mammoth Cave, north on I-65
Mammoth Cave National Park is reached directly from I-65 at Exit 48 in south-central Kentucky, which makes it the easier of the two national parks to fold into a short trip. Mammoth Cave Campground accepts RVs up to 38 feet, Maple Springs up to 40 feet, and both run March through November with reservations on Recreation.gov. Neither offers full hookups, though both have dump stations. Houchin Ferry is open year-round but takes tents only, no RVs or trailers. If the cave is the anchor of the trip rather than a stop, campervan rentals in Kentucky put you on the same side of the state line.
Planning around the parks, not the city
The practical shape of a Nashville van trip is that almost nothing near the good camping gives you shore power. The parkway campgrounds have none, the Smokies effectively have none, and Mammoth Cave stops short of full hookups. Work out how many nights your van's battery and water tank actually cover before you commit to an itinerary, and build in the state park or private campground stops where you can top up.