I rode the motorboats on every trip. I remember the Gummi Bear addition, there was audio installed next to each cut out and the cut outs wished for gummiberri juice which was sold somewhere near the exit.
At night, the amber lights (on the hoods of the front of the boats) were on and the motorboat cruise had a romantic feel to it at night with colored lights here and there near the bubbling rapids. Lots of couples rode in the evening and cast members seemed to be absent under the bridges, and one did not feel watched during the ride. I saw one guest jump from his boat to a friends boat due to lack of supervision.
My father-in-law says he remembered when they opened, that the lines for the motor boats were too long for what they offered.
In the last days of the boats, I found the lines to be very short and they moved pretty quickly since there were plenty of boats circling on the tracks. I liked the left/north side versus the other side as it seemed there was just a little more track to cover. This was a family friendly ride. simple and fun.