Square cluster of lights over beachfront.During public beach fireworks displays, witnessed a square arrangement of 4 or more lights which seemed to belong to a single craft, colored green and white. Hovered in a tight location, did not move with wind, 200-300 yards from ground. Changed lateral location slightly, within 20 feet of original sighting, rotated slightly from time to time. Craft also exhibited whitish aura above it, though there was little to no overhead cloud cover which would reflect light at that distance. Initially considered craft to be a drone piloted from the ground. I walked several hundred yards closer to observe, overheard other witnesses pointing out a drone in the sky. No other lighted objects observed, no helicopter noise or otherwise was discernable. Began walking away from area, turning every 15 seconds or so to look again. Between glances the craft disappeared. Did not observe it leaving the area or descending. Drone theory still possible, but lights were brighter than aircraft marker lights and, being unfamiliar with drones, I am unsure if a drone could descend and land quickly enough to totally escape observation. Corroborating observations are encouraged. Attempt to photograph object resulting only in a blurred single light, with a iphone camera unable to distinguish individual points.