[Phalanx]

I can't speak to the lobster, but on things to see and do... The cruise ship terminal is next to Pier 21 (the immigration museum) and the Seaport Farmer's Market (lots of good local food and crafts, especially on Saturday mornings).

The Citadel is worth the trip if local history and some nice views are of interest.

The cruise ship terminal is also at the end of the harbourfront boardwalk, which leads to the historic properties.