Since we have been to Portland many times we decided to take the ferry around the small islands where they pick up and drop off passengers and merchandise. It was a fun ride. There is also the mail run and other people we talked to enjoyed that also.
DH an DD took a taxi to Murphy's and had lunch and visited their great gift shop. I did not get off the ship that day, but I love Murphy's gift shop. Murphy's is at the end of the boardwalk where you pick up some of the shore excursions.