Morro Bay South is also called Target Rock. There is a large rock near the side of the bay and this is a good place to start diving. Vis. Here is different at different times. One good rule for Morro Bay is always dive the high tide. Currents sweep you in and out of the bay otherwise. The bottom life can be amazing: giant spider crabs, big lings, cabs, a few rockfish, and lots and lots of giant rubberlip and other perch. I recently cut a 4 foot leopard shark loose from the bottom of the bay. Great diving but check the viz. If you can't see down past two feet in the water, don't think about diving; the viz will be down to zero. A most underrated dive!