For me, Big Bear/Fawnskin area, in a past life. It's pretty much all snow melt run off that creates the runnels and feeds Big Bear Lake up there.
But on thread, imagine the surprise of finding a Citroen Dyanne up there, perfectly preserved and running. Owned by what I think is now called a nerd. Mind you, that is whacky corner. The odd MG Midget as well, nil rust but sun/UV damage quite severe.
There is an old London taxi running around Temecula as someones daily driver.
In Fallbrook, just down the road, which backs onto USMC Camp Pendleton there is one of the best classic Porker restorers in the US. Not cheap, but damn good.
The best vintage Porsches for sale. The best classic Porsche for sale in California. The best air-cooled Porsches. California's Porsche restoration company, is an independently owned and operated business.