In the Hamptons 4th of July parade on July 3, 2018July 3, 2018 by Saunders & Associates July 4, the “largest 4th of July parade” on Long Island kicks off in Southampton from 10 a.m. to 1 p.m. The parade leaves from Railroad Plaza and continues down North Main, Main Street, Jobs Lane. previous post Montauk Fireworks next post Your Hamptons Fourth Of July Fireworks Schedule