Hi, this is the bonus cache for the Adventure Lab called "Glehn's Castle".
The cache is not located on the following coordinates, but you have to complete the Adventure Lab stages in order to unlock the actual coordinates for this bonus cache. You add the real coordinates in the solution checker, or in the "Waypoints" section for this cache in the app - and then you can search for the real location!
Please bring your own pen for this geocache! ✏️