Does anyone know about diving inside SF Bay? I'm not sure what exactly you'd see there, but I find the convenience appealing. It seems like a good place to get experience. I would plan on entry to the north of the Sloughs--basically where the water is no longer extremely brackish and nasty. I was thinking of somewhere around Palo Alto on the West side or Emeryville on the East. In addition to convenience, it seems like these areas would be free from strong currents and boat traffic. I don't know about bottom conditions, but I would assume that you would at least have a gradual slope.