This is the obvious thin crack in the center of the slab.  The seam takes gear in places, and does protect adequately.  i think I got 5 pieces plus the bolt.  The crux comes at the overlaps near the top, but you can get a good nut in right below.  Once you clip the bolt, you can traverse right to anchors, and belay/rappel.

Center Crack

Directissima

Sevy

Follow the leftmost line of bolts to the dihedral, then climb the dihedral until you run out of rope.  Set a belay in the alcove.  Continue right, then up to the summit and descent trail.

From the base of Sunday Slab, Directissima climbs 100' past three bolts to a two-bolt anchor at mid-way.  Rappel (you may have to leave a biner if its gone), or climb past two more bolts, then over a roof protected by a cam to belay at the top of the slab.  Great route.

Description

Protection

Routes in Sunday Slabs