Revere.
If there's one Metro-Boston event I felt that I hadn't fully taken advantage of up to this morning, I definitely would have said the International Sand Castle Sculpting Festival on Revere Beach. Sure, it's not technically in the city but it's certainly a Boston-area tradition and one that I truly believe everyone should see once. Music, food trucks, people watching, sun & sand. Does it get any better?
But don't just take my word for it, take a peek... (Click to scroll.)