Summer on Lake Anna is lived at the water's edge. By midafternoon the kids are swimming off the shore while boats idle out in the cove, and by evening the whole campground smells like charcoal. The motorhome stays on one site all week with the slide-out open and the awning shading the picnic table, so nobody packs a thing until the last morning.
That kind of week works best at a campground built for a rig, and two west of Fredericksburg carry most of it. Christopher Run is on the lake itself, along the private shore. Small Country Campground, outside Louisa, is a different base with a lake of its own and the roomier pads for a long rig.
Christopher Run on the shore, Small Country near Louisa
Christopher Run is the one for a family that wants Lake Anna out the door, the swim and the boat ride and the evening by the water, all without moving the rig. It lists full RV hookups and a dump station, so a week of showers and dishes never means breaking camp to empty the tanks.
Small Country stays open year-round, which puts a spring or fall week on the table. Its full-hookup sites take rigs up to 50 feet with sewer and 30 or 50 amp service, and they're the only pull-throughs on the property. Water-and-electric sites stop at 30 feet and are back-in only, so a longer Class C, or a driver who would rather not reverse into a pad, belongs on full hookups. A couple traveling light can skip the length math altogether, and the Fredericksburg campervan page covers that smaller trip, from Lake Anna State Park to Westmoreland on the Potomac and Caledon.
A rainy day sends people back toward town for the Fredericksburg and Spotsylvania battlefields, a few hours of Civil War ground and visitor-center maps before dinner at the site. Kings Dominion is the louder day off the water, roller coasters until the kids give out, and its campground is laid out on the Richmond RV page for families who would rather sleep at the park itself.
South on I-95 to Orlando
The other trip out of Fredericksburg points south and keeps going. I-95 carries a motorhome through Richmond, the Carolinas, and Georgia into Florida, with the kitchen and the bathroom riding along, so lunch is a rest-area stop at the dinette and the kids sleep in the same bunks every night. The road does the planning after that, and each night lands at a campground off whichever exit ends the day's driving.
Night one belongs close to Fredericksburg. A campground like the Fredericksburg and Washington DC South KOA Holiday keeps the first day short and gives everyone a practice evening with the rig before the long days start. Book that first site before the motorhome itself, because the first night out is the one with the least room for improvising.
Families with more time can point the rig west instead, on a cross-country run that ends a long way from the Atlantic. Cruise America runs one-way rentals from any of its 132 locations, and its hub in Warrenton, listed as Washington DC (Manassas), takes rigs south to its Orlando hub in Kissimmee or west on those cross-country drops.