Finally managed to get past all of the waterfall section, and then it was all easy for a while. Made it into the West Idol place, where the puzzles to get the reflector working were much easier than in the East Idol place, and then there was a short section before returning back to the main gates.
Yorda opened them, but sadly, our rush for freedom was cut short by the shadow queen woman, and I ended up losing Yorda, my sword, and seemingly fell to my death.
I wasn’t dead, of course, but I am stuck. I’ve made it into a big flooded area where I need to get a block from one side of a river to the other, but I can’t seem to figure out how to do this. Worse still, is that I can’t save my game at this point, so I had to switch off knowing I need to backtrack somewhat. Bah.