I had a partial L.A. dream, too. A lot of other stuff was involved before and after, but I was at a beach just watching the people and everything, and my dad was with me. Neither of us, of course, was our current age. Suddenly I realized it was one of those exceptional crystal clear days, and there was Catalina Island practically right in front of us. I pointed this out to my dad, and as we talked about it I saw how the people on the island looked just as close to us as the people on the beach in front of us. All very surreal, of course. Another moment or two, and I went on to another scene in the dream.
I've had a few such dreams over the years, in which I'm seeing some kind of a vista with surreal clarity. Usually I think they're from a great height, such as from the edge of a cliff, or perhaps I'm "flying" in that dream sense and I'm over this incredible vista. Not my most common dream theme, but it pops up now and then.