Boat captains must master nautical lexicon before sailing the seas to ensure that they can distinguish "port," which means left, from "starboard," which means launch the vessel into deep space. Count down to a sea launch with this Groupon.
- $28 for a boat cruise for two ($48 value)
True to its name, Portland Discovery helps visitors explore the scenic coastal town's majestic, rocky coastline with tours by boat or vintage trolley bus. These tours include cruises among the lobster boats and seabirds of Casco Bay that pass lighthouses and historic forts, and trips through downtown that highlight local landmarks.