Where is the town of San Juan Capistrano?

M: So Rebecca, what did you do for spring break?
W: I went to southern California. I was in Los Angeles and San Diego. Oh, and I stopped in San Juan Capistrano. That’s south of Los Angeles and north of San Diego. I happened to be there just about the time the swallows returned.
M: Oh, I’ve heard about that--they always return on the same day, don’t they?
W: That’s right, on March 19th. And they always fly away on the same day, October 23rd. In the meantime, they migrate over 7,000 miles to get to their winter home.
M: Seven thousand miles--imagine! And always coming back on the same day!
W: Yes, except for one year, a long time ago--they were delayed for a day bya storm at sea.
M: You sure were lucky to be there on the one day of the year when the swallows return.
W: Well, I wasn’t there exactly on that day. I got to town a couple of days later--but I did see the parade celebrating the swallows’ return.
M: They have a parade? The people there must really like those swallows.
W: Sure--they bring lots of tourists to town, and besides, the swallows eat insects, including mosquitoes.