Outside and right of the grotto is a route (not the 5.6) which the first bolt has a hanger and the rest of the route is cold shuts.
Clip first bolt while using well chalked sloping and not-so-positive left hand hold. Look for key pocket below & above 2nd bolt. Moving past the second bolt is the crux and the route eases once past it.
See Greg Oplands Photo for Casino Cliffs Left. The route is not depicted but is just right of Circus Circus 5.6
1 bolt, 4 shuts and shut anchors