We love evening cruises around the Harbor, well except for boat parades.
A night vision camera is not a bad idea. I got a handheld Flir a couple years ago after a close call leaving Avalon Harbor at 4 am. There was a small boat in the middle, just outside the entrance. A very small craft, no lights, and barely registering on the radar. I still have no idea what, or who it was, but a quick look on the Flir would have resolved it.