Great for taking first timers out! There are three distinct routes here that share an anchor with rap rings. The anchors can be accessed from the Plunge overlook above.  Looks like someone replaced anchors with bomber 1/2 studs and hangers for a nice top rope or rappel station.

Hike ~10 minutes down the Blackrock Trail (yellow blaze,) from the parking lot until it intersects with the Brimstone Trail (red blaze.) Turn right at the junction, hiking downhill, and in a few minutes you will see the large slab off to your right. You can bushwack/scramble to a good ledge at the base.