This cache is hidden on a secret path that leads to a cool tree swing. You can park across from the Priest Rock trailhead and take a short walk over toward the bench. You will find the hidden path to the right of the bench behind some scotch broom. You can start your search there!
You're looking for a camo'd pill bottle. Check out the tree swing while you're there, but if you're at the swing, you've passed the cache. There is some poison oak in the area, but none near the cache.
Good luck!
This is my daughter Lumie's cache. She put it together herself, chose the hide spot and camo, and (mostly) wrote the description. She hopes you enjoy it!