The cache is not at the posted coordinates.
To find the location of this cache, you will need to complete the "St Patrick's Park" set of 5 Adventure (Lab) Caches and collect the codes.
This Adventure Trail will take you around the park & cathedral, pointing out some of the features and history.
The park has various closing times between 04:30 & 21:30, seasonal.
This bonus cache is available 24/7.
Use your phone's native QR code scanner to open this Adventure in the Adventure Lab® mobile app, or share the following link
Upon completion of each Adventure stage, you will be given a code letter for this Bonus Cache.
Once you have all five enter them in alphabetical order into the checker, all lower case with no spaces, thus: abcde
You can validate your puzzle solution with
certitude.