This is the first big boulder on the left while walking up towards Higher Cathedral Rock.
From the parking turnout. Find a trail that takes you into the woods towards the Valley Loop Trail. Make a left onto the Valley Loop Trail until you see another faint trail that goes up the hill. It will either be right there or less than a minute away. Follow this trail for a few more minutes and bear left and you should see the Hex Boulder.
Browse More Classics in The Hex Boulder
Mountain Project's determination of some of the classic, most popular, highest rated routes for The Hex Boulder:
The Octagon V6 Boulder, 15 feet
The Hexcentric V7 Boulder, 15 feet
Featured Route For The Hex Boulder