Sorry, I don’t know how to insert the little “spoilers” button. So, don’t read unless you already know the answer.
There was a “blue key” at the end of the Bon Bosque run. It was up in a tree. Past that is a very high cliff.
I had to redo that section several times, so I don’t really remember for sure where it got used. I’m pretty sure it opened a gate, but then that didn’t seem to go anywhere and I ended back up in the forest. Now, I just run from one end of the forest to the other, not being able to find an out.
I don’t want a complete solution, but just the wee-est hint of what to do next would be appreciated.
Oh, FYI I have bought all the items from Chopple, but haven’t opened any of the locks on the tree houses & there are still a few gold apples I might need to get. There is still a big gold piece on the left side of a tall cliff that I haven’t got. I’m sure there is other stuff I’ve missed – those darn squirrels just are so distracting…