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The Coluccio family: Two brothers, second-generation pyrotechnicians, worked together with their father, the chief on the Great Bonac Fireworks show. Joanne Pilgrim photos
Fireworks shells are dropped into mortar tubes arrayed in grids and wired together in a sequence created by the show's choreographer.
Lower, sizzling effects are created by the smaller fireworks.
As a tugboat pushes the barge into position on the west side of Three Mile Harbor, people gathered along the shore and on boats wave, applaud, and toot air horns to thank the fireworks crew.
With work done for the moment, the crew waits on the barge, alone inside a safety zone, as night falls and showtime nears.
Inside a protective area on the barge, which rumbles underfoot with the concussive bursts as the fireworks are launched, the pyrotechnicians oversee the computerized program that sets off the show.
The aftermath: Returning to the dock in the dark, Steve Coluccio updates the chief pyrotechnician's record book. Cleanup must still be done, post-show and the next day.

A creature from another planet was among the many visitors to East Hampton on Halloween. Morgan McGivern
Main Street in East Hampton was filled with trick-or-treaters. Morgan McGivern
It was all about the hair for one older trick-or-treater, and a puppy named Archie tried to see what a little pumpkin had to offer along the trail.Jane Bimson
Glen Welsch, an obvious Mets fan, with his daughter, Hailey Welsch, who dressed as an angel, on Halloween in downtown Montauk.T.E. McMorrow
A family of super heroes trick-or-treated in Montauk on Saturday; Jake Williams, otherwise known as Batman, Madison Williams, as Wonder Woman, Sherry Williams, in a Batwoman outfit, carrying Sierra Williams.T.E. McMorrow
Some of the tiniest trick-or-treaters in Montauk.Jane Bimson
Wendy and Dan Boerem with their daughters Avery and Abby T.E. McMorrow
Right on the Montauk streets, a face-off between Darth Vader (Brian Lester) and Luke Skywalker (Hudson Roman)T.E. McMorrow
Austin Allen of Springs, who was a battle field soldier, was among the kids who attended the Halloween open house at the East Hampton Ladies Village Improvement Society on Saturday.Durell Godfrey
Rafa DeMartis kept the Halloween fun going on Sunday at the Halloween "Pawty" at the Animal Rescue Fund of the Hamptons in Wainscott.

Morgan German, competing in the 100-yard butterfly above, was East Hampton’s “most outstanding swimmer” in the meet here with Huntington on Oct. 9. Jack Graves