From the main gate head down the path, take your first right and then the next right that heads downhill. At the bottom of the hill, take a left at the cairn just before the stone wall. Go down the hill passing "Rocket" and "Space Cowboy" Boulders on your left. Follow the trail right past "Moon Cheese" Boulder, and you will come to this boulder along the mountain bike trail. You can also access this by taking the immediate right after you take the right toward the "Beehive" Boulders when coming up the hill around the pond.