The cache is not at the posted coordinates.
To find the location of this cache, you will need to complete the "A Walk around Cavan" set of 5 Adventure (Lab) Caches and collect the codes.
This Adventure Trail will take you around the town, pointing out some of the features and history.
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 word for this Bonus Cache.
Once you have all five, enter them in alphabetical order into the checker, with a hyphen between, thus: apple-bone-cupid-dog-elephant
The coordinates and a spoiler will be revealed.
You can validate your puzzle solution with
certitude.