Though overshadowed by uber-destination Florida, the Southeast US has vacation hotspots (such as Myrtle Beach SC), renowned beach resort areas such as Hilton Head SC, legendary resorts such as Sea Island GA, and much more, below. See also a history+fun tour in the South with focus on Memphis and Atlanta.
In North Carolina: The Outer Banks are a laid-back family vacation spot, with beaches, sand dunes, swimming, crabbing, and kayaking in salt and freshwater marches. Some amusement parks and attractions, too.
For a rustic getaway, try Earthshine Mountain Lodge, near Brevard NC: a luxury B&B with much on-site fun -- playing at pioneering, secret Cherokee Village (make pottery, grind corn), creed waterslide,high ropes and Zip Line...
In South Carolina, Myrtle Beach is a top draw, with beaches, amusement parks, golf.
And Hilton Head is a famous destination that combines natural beauty plus family-friendly resorts.
In Georgia, Stone Mountain Park is the # 1 attraction, a combination natural wonder (the giant granite outcropping, carved with the world's largest sculpture), plus play zones and Lasershow.
On the coast, Sea Island is a legendary resort, built in 1928; with 10,000 acres, 5 miles of beach, many family activities.
In Alabama, Gulf Shores is famous for sugar-white beaches. Waterpark and good prices too.
In Tennessee, TN: Chattanooga offers lots to do beyond the choo-choo. (Guest article.)
And for an out-of-the-ordinary family vacation, see this American South Road Trip: a guest article about a family trip that started in Montgomery Alabama, rolled on past the Big Muddy (Mississippi River) and onto Memphis, with much fun sight-seeing (and some serious historical sight-seeing) on the way.
For lots more ideas, see Southeast US Travel at About.com.

