Beaufort is the trip for people who found Savannah crowded. It is a small antebellum port on Port Royal Island, reached up SC-170 across the Broad River, with a waterfront park, a compact historic district of white-columned houses under live oaks, and a main street of independent shops and restaurants along Bay Street.
The town has an outsized film history: The Big Chill, The Prince of Tides and parts of Forrest Gump were shot in and around it, and local walking tours make a good living pointing out where. Henry C. Chambers Waterfront Park is the centre of gravity, with swings looking over the Beaufort River and a marina beside it.
Twenty minutes further out on St. Helena Island is the Penn Center, one of the earliest schools established for formerly enslaved people and later a meeting place for civil rights leaders. It is one of the most significant Gullah Geechee heritage sites in the country and deserves more than a drive-by.
Continue another half hour east and you reach Hunting Island State Park: a barrier island beach backed by maritime forest, a lagoon, and a lighthouse you can sometimes climb. There is a per-person park admission, and the lighthouse climb opens and closes for maintenance, so check before you build the day around it.
On the way back, the Old Sheldon Church Ruins near Yemassee are worth the short detour. Brick walls and columns standing open to the sky under live oaks, free to visit, quiet in a way the rest of the region rarely is.