The cache is at the published coordinates. You may find this cache and sign the log at any time. If you are NOT qualified and FTF is still available, do not sign on the FTF line but write a Note log to record that you signed it.
The Bay Area is known for a wealth of puzzles with notorious puzzlers ranging from kablooey to Venona. This challenge should be a piece of cake for those in the area I reckon.
To qualify, you must have found and logged a minimum of 500 mystery caches including at least 100 mystery caches with a difficulty of 3.0 or greater .
The checker below will confirm your qualifications.