You are looking for a silver bison tube, located at the entrance to Cockshutt Park.
Please Bring Your Own Pen to sign the log, and replace exactly as found.
A special tool may assist in the retrieval here (unless you have really tiny fingers)
Parking is available in the parking lot for Cockshutt Park, less than 15m from the cache.
Please try to use stealth as this park can be busy.