Catalina Island, California - Very peaceful and serene. Just breathe and take it all in.
Ensenada, Mexico - Not a place for kids. If you go to La Bufadora, prepare yourself for the onslaught as you walk through the market to get there. I call it "the Gauntlet".
Long Beach (Los Angeles), California - It's Southern California, there is ALWAYS something do to. Our favorite is going to the pier at Huntington Beach.
Carnival Imagination - Rent a golf cart at Catalina Island to get around, well worth it. But if you do, reserve it in advance. You'll get it for 3 hours vs 2 hours if you rent one on site. The extra hour will make the difference and you won't feel as rushed to return it.