I'm not a kayak dude but being based out of Santa Barbara I'd think your options were many. Between Santa Barbara and Morro Bay are much of the best rock fishing known in California, with many record fish being taken in the area around San Luis Obispo, and out of Morro Bay. All along the coast, and especially next to the Marine Protection Areas - though be careful not to go into them - should be productive. That said, this region is also known for bad weather, especially around Point Conception. So I'd be very careful and pick my days going out on a kayak.