Even though fireworks are illegal in Massachusetts that does not stop the various beach communities along the South Coast (and I presume Cape Cod as well) from putting on their own enthusiastic amateur fireworks shows. Since the fireworks are set off on sandy beaches and explode over the water the fire danger is relatively low.
It’s not as dark as I’d like but on clear summer nights the Milky Way can be captured out over the relative darkness of Buzzards Bay.