This cache is slightly outside the main part of the park, in Carglas Plantation adjacent to Dumbrock Moor, it is extremely easy to get to from the visitor centre but can be muddy if raining, so boots would be a good idea. There's a variety of routes to choose from to reach GZ, choose wisely!
Due to the surroundings and depending on your equipment, you may have some issues with GPS reception here... I managed to get ~5m accuracy when placing this cache - hopefully you'll have similar luck !
The cache is named, with tongue-in-cheek, after what was (possibly still is) one of the most common Geocache hints. Don't let this wee sneaky one defeat you.
Have fun!