For easiest approach:
After turning into the entrance, take the roundabout towards the left side of the building and park on the South side (left side) of the building. You can park anywhere but this makes it easier. Go to left of a light brown generator box, to the edge of the lawn, following left until you find the cleared entrance to the trail. Just follow your GPS towards the cache to follow the trail and you'll be in the area!
Tb va nobhg 50 srrg sebz genvyurnq; vg'f ng gur ortvaavat bs gur fgbar jnyy, ng gur onfr bs vg.