The advertised version of a romantic weekend here involves a suite with a Sound view, a tasting menu and a spa. You can have all of that, and a midweek rate on the casino strip in January will buy it for less than a chain hotel costs inland in July. But it is not what makes this a good trip for two, and a guide that stopped there would have missed the city.
The thing Biloxi does better than any other destination on this network is a specific hour. The Biloxi Bay Bridge carries US 90 east across the water to Ocean Springs, and on its Gulf side there is a twelve-foot path, fenced off from six lanes of traffic, running about a mile and a half from one shore to the other. The replacement span opened in November 2007 after the previous bridge was destroyed in 2005, and somebody made the decision to put that path on it. Walk it westbound in the last half hour of daylight. The Back Bay is on your right, the Sound and the open water on your left, pelicans go by below the rail at eye level, and the sun goes down across thirty miles of flat water. It costs nothing, it takes half an hour on foot or ten minutes on a bicycle, and it is the best thing this coast has for two people.
It also delivers you somewhere. The path lands in Ocean Springs, which has the most walkable old downtown on the Mississippi coast: low buildings under live oaks, galleries, a pottery workshop that has been in one family since the 1920s, kitchens that are not attached to a casino, and the Walter Anderson Museum of Art. An evening there is the trip.
The other thing this city gives a couple is food with a traceable origin. Biloxi built itself on seafood, the fleet still goes out from Point Cadet, and a good restaurant here will tell you which boat and which dock. That matters more than it sounds: imported farmed shrimp is sold on this coast too, and the difference between a plate of Gulf shrimp landed forty-eight hours ago and the alternative is not subtle. Ask the question. Nobody minds being asked.
What the casinos are actually for, in this context, is the infrastructure a city of fewer than fifty thousand people should not have: an arena that pulls touring acts, restaurants serving past ten, spas, and a room rate that collapses on a Tuesday in November. Use them for that. The gaming floor itself is the least interesting thing in the building.