Funny, as you were posting I was replying to Javaman about the Santa Ana river trail. I've been down there a couple of times and like that ride alot when I want something flat. I've done the down and back from, I guess the start, right off of the 91 - I go down the 57 to 91 west and first exit but forget the road name. Is that the start? It was about 60 miles round trip but was just down to the beach and back, no riding along PCH or anything.