Laguna Beach Pacific Harbor Seal

You can almost always Pacific Harbor Seals while roaming around the ocean in Laguna Beach, I do not see them often while snorkeling though.  However, if you really wanted to, you could probably just drive from beach to beach and then go snorkeling or diving near where you saw a seal on land.  I would suggest starting north Laguna Beach near Crystal Cove.

Laguna Beach California Spiny Lobster

The Pacific ocean around Southern California is filled with California spiny lobsters.  However, they are hard to see while snorkeling, you will often see parts of them floating on the sea floor or beach.  They do hang out in rocky areas near shore.  They are much easier to see while scuba diving at night.  If you do find a place where they hide, they seem to stay there and you can find them again the next time out.  Laguna Beach is a no take zone for lobsters and fishing now.

Also in this picture is a juvenile Garibaldi with the iridescent blue spots, purple sea urchin, and I think an abalone of some type.