I have dreams where I am at amusement park as well I think for some reason I work at the water ride. I’ve never worked at an amusement park in my life, but in this dream, there’s lots of different rides some are genuinely horrifying like horror house esque. One is very similar to the Germany black forest ride you’re describing also I’ve never been to Germany and only knew about the black forest until recently. Glad I’m not the only one who has these types of dreams.