Sean,
The Muni is local shorthand for Wilmington Municipal, the aforementioned Donald Ross gem.
Cape Fear CC was also mentioned earlier. If you can find a way on there, it would be worth your efforts. Kris Spence, who has occasionally posted here, has recently completed a renovation of the course, which was also a Ross design, though somewhat altered over the years. I haven't seen the course since it reopened, but the pictures look great and a friend who is a member is thrilled with the way the work came out.
FWIW, CFCC and the Muni are only a few miles apart off Oleander Dr., which is the main drag through Wilmington. From either, it is a straight shot down Highway 17 to the north end of the Myrtle Beach courses that I mentioned earlier. Every July, I spend a week on the north end of the Myrtle area (Sunset Beach), and take one day to play in Wilmington, usually 36 holes. It is an easy trip if you want to see any of the better courses on the Strand. Unfortunately, Caledonia and True Blue are on the extreme south end of the Strand, and that would be a 2 hr. drive from Wilmington. But River's Edge, Tiger's Eye, and the Love Course at Barefoot would be easily accessible for you.