Bermuda is always great! Snorkel Park Beach is within walking distance. However, it was $5 when we were the only ship in port and $10 when there were two ships. Glassblowing is always entertaining to us. Make sure you use the free train shuttle to or from the mall.
The Old Town Trolley Tour provided a good overview of Boston sights. The guide was young and spent some time discussing pubs, etc while we missed sights that were pointed out to us by a different guide on the return shuttle.
A combination of the first visit to this port and stormy weather made the tendering process long and tedious. We were only able to walk around the shops, which were nice, but it would have been much better if it weren't pouring.