Great Bay is one of the hottest restaurants in Boston, and it has earned this reputation with its consistently excellent seafood dishes. Seared kingfish topped with macadamia nuts and melt-in-your-mouth salmon are just two of the many main courses you have the opportunity to sample. The Bay’s interior has an offbeat, underwater theme, but it comes across nicely and makes guests feel comfortable while dining. The “island” separating the suave lounge from the main dining area actually doubles as a raw bar, one where the Duxbury osyters and halibut tacos always hit their marks.