See the "Getting There" section of the Champlain Mountain main page to see how to get to the Precipice Trail trailhead on the Park Loop Road.
Those not comfortable with heights should not attempt this route as there is lots of exposure. That being said, this is very straight forward route. From the trailhead follow the trail and blazes up through the forest and boulder fields to the bottom of the east face cliffs. From the bottom of the cliffs follow the series of blazes, ledges and ladders to the summit. Great fun!
Typical hiking gear is adequate for this route. Bring your camera and binoculars but don't bring your dog unless you want to carry them up each of the multiple ladders. Yes, I saw someone doing this!