Red Top Mountain State Park near Cartersville sits on a peninsula in Lake Allatoona, just a short drive from Atlanta. Its name comes from the red soil rich in iron ore, and the park includes traces of the area's iron-plantation history. About 15 miles of trails wind through the woods and along the shoreline, offering lake views and easy walks. Boating, fishing and swimming are popular on the water, and a lodge, cottages and campsites make it a comfortable base for a weekend. Parking is $5 per vehicle, and camping runs $20 to $42 per night. It is one of the most convenient escapes for Atlanta area residents.