From the belay, walk right to the corner, clip a fixed pin and use a long runner. Then work up the corner with thin gear at the start. This is the crux and is a little awkward (it climbs a little harder than it looks from below). Clip another loose piton (if you want), then continue up the slab by jamming and lie-backing up the corner with good gear to the 2-bolt anchor at the top of El Nino.
This route climbs the slanting left-facing corner on the Sun Slabs, just right of El Nino. Start up the easy slab as for El Nino and belay at the two-bolt anchor where El Nino begins.
Standard rack to 2". A couple fixed pins. 2-bolt anchor at the top (shared by El Nino).
Rappel the route.