Looked like a great time. I was going to ask if it was a true paddle wheeled river boat but the photos answers my questions. The lights on the "drive wheel" and the birthing position give it away as twin screw, paddle wheels with monkey rudders tend to have to angle into the birth. We have a smaller version that runs a local river here, I got to know the captian quite well from my nights out on the river catfishing. He appreciated that I was one of the only boaters that knew his "swing points" in the bend we fished, most boaters would block his path, thinking they were getting out of his way by mistake.
Not much beats being on the water at night.