I didn’t realize updates were being added to the repository post in the main games thread throughout the month.
I got the first acorn message, pretty sure the second is a clue related to the canoe rental sign in the visitor center. I think the third is a clue related to either the symbols on the message board in the visitor center or pointing to the links in the July Prompts.
The crystal ball image has some things hidden in the ball and I think I need to find a map. Maybe.