We stayed down on Kiawah Island while playing golf. We drove up to Charleston a couple of days.
It is a very walkable city, historic parts and anything worth seeing is an easy walk from Broad Street. Not a big area. We did a guided walking tour which was excellent. Best meal we ate was at a restaurant called Fig, reservations required. Best shrimp and grits was down at the Kiawah Island resort hotel. BBQ at Lewis Barbecue was good as well and great deserts at Carmella’s Desert Bar.