This hike heads up an unlikely-looking canyon that soon narrows into a nice slot, then narrows even MORE! At the junction with the East Fork, the vigorous canyoneer has a couple of options. A bit of climbing leads up the East Fork to an "inscription chamber" where people have left their names scratched into the wall over the last 50 years. A bit of sideways shuffling up the Main Fork leads to the slot called "Belfast Boulevard". This is a good place to evaluate your skinniness. Belfast Boulevard is not particularly skinny by Leprechaun standards, so if you think this is tight, you will definitely struggle descending the Main Fork from above.