The Seafare Seafood Buffet has a number of locations in the Myrtle Beach area and has been around for a lot of years. Depending on when in the season you go you will need to get there early; if you don't, you can find yourself waiting 1-2 hours to be seated.
The food is prepared Calabash style (not really sure what that means, but I can tell you that it is good). At the buffet, you can get every form of seafood available: shrimp, scallops, oysters (in season), crab legs (major draw for most people), blue crab. If you are not a seafood lover than you can get chicken, french fries, pizza, hot dogs, and hamburgers. Desserts are also included: ice cream, bread pudding, pie, etc.
The atmosphere is very family oriented with a mermaid in most of the Seafare locations (real mermaid floating around in a pool in the restaurant). Service and food quality overall is good, but you can always find an angry server or overcooked shrimp. So try it out and enjoy!
P.S. Wear you most loose fitting clothes.