Thank you for the details. That makes a lot of sense. I didn't realize the metal thing was replaced - it seems the same! They did a great job there. Also, I might have been thinking primarily of Kenton's Cove because I remember it in a slightly different spot in the park.
EDIT: I was primarily thinking of Kenton's Cove! The rotating platform...the gondola...the really tall drop at the end. Seeing photos brought it back. I'm not sure I even knew at the time that the other flume existed.
I had remembered a water ride in the main park that had a rotating platform, but I had thought it was just the whitewater-rafting ride. Guess there were two. I remember that when I went there in 2001, something felt a little...off in that part of the park. Guess now I know why.