What a great puzzle (and what a lovely tribute to Araucaria).
I had a look at this on the night it was published but could only manage a handful of the clues. At lunchtime on the following day I had another go and got my total up to 14. I still couldn't see how to fit them into the grid though so really that wasn't much progress. I'd tried out various ways but nothing seemed to fit.
Then I saw that a green tick had appeared on the page - IceColdUk had solved it (well done for being so quick). That spurred me into action again and I solved some more: by now I had over half of them.
I thought of a different way of fitting them into the grid on the train into work and tried it out at lunchtime. This time it all started to work out and I solved quite a lot more. Then just as my lunch hour was coming to an end I had another big breakthrough, and so had to wait for the train journey home before I could finish it off. It was a great feeling when it all came together.
I'd picked up three MrCryptic puzzles already this morning, but this was the main reason I was here today. Another nice walk to a pretty spot. There were a lot of crows cawing along here for some reason.
The cache was an easy find in the first place I looked. I took the 2TF certificate (to go with the 7, 9 and 10 TFs from the earlier caches).
#1618 TFTC (+fave point)