Hymans downtown on Meeting St has the best seafood in the entire area. We are in Charlestown often since our son was transferred from Everett WA with Boeing. The shrimp is like no other. We park in a ground level lot 2 blocks southwest They have several different platters or mix and match items along with fresh catch. It's a short drive from Folly Rd along 30 to downtown then right on Meeting St.
Non seafood, the Tatooed Moose on Johns Island, close by with their Duck Club and the Glass Onion on Savannah Hwy for their fried quail. Both featured on DDD.