Old Port Sea Grill & Raw Bar

From OpenTable: 

The Old Port Sea Grill, located in the heart of the Old Port, serves the freshest seafood prepared simply so that you can taste the flavor and quality of the product. We offer the largest selection of oysters on the half shell in town, with varieties from across New England and Canada, providing you with a unique experience here in Portland. Of course, we always offer a traditional steamed Maine lobster and one of the best lobster rolls in Portland.
Take in the city streets from our picture windows while relaxing with friends, entertaining business associates or watching our flat screen TVs. We have sixty four seats in our dining room and over fifty in our bar and lounge area, featuring our custom-built marble and concrete bar, allowing plenty of room for larger parties and gatherings in either area. We always feaure local micro brews on tap and have a specialty cocktail menu that changes seasonally. Be sure to check out our 500 gallon aquarium, one of the largest in the area.