thanks! Yes, I did find #13, but I didn't write down where, only that I had. Sorry

I can tell you this - I found #9 1st, then 13, then 12, 11, and 10, in that order. I'll have to start making notes of all this.
#10 is located on the logs that you cross after the millipufs, so #13 has to be before you get there.