Personal favorites
"Salt" about the salt ponds around the South Bay. https://blogs.chapman.edu/huell-howser-archives/1999/01/08/s...
"Drawbridge" about a ghost town in the marshes of the South Bay. To me, it was more interesting as a glimpse into how people lived a hundred years ago. https://blogs.chapman.edu/huell-howser-archives/2002/01/08/d...
And because I think it's important to remember the ugly parts of history, lest it be repeated, I'd recommend "Manzanar" https://blogs.chapman.edu/huell-howser-archives/2002/01/08/m..., "A Tale of Two Cities" about Colonel Allensworth State Park https://blogs.chapman.edu/huell-howser-archives/1992/12/10/a..., and "Weedpatch" about the 'Okies' https://blogs.chapman.edu/huell-howser-archives/1995/12/10/w....