You are looking for a gray bird house, inside of which is a blue water proof container. You do not need to cross the creek or go down into the creek to find this one. You can park where the road ends. This is in a neighborhood but is at the absolute end of the neighborhood so heavy traffic is unlikely.
This is my first hide so if you got any recommendations or anything just let me know and I hope you enjoy finding this one!
*Congrats to Damned Rodan, Robgso, and Bentley on a very fast FTF!*