KMRY - Monterey - Home of world famous Monterey Bay Aquarium and some awesome rocky pacific beaches. Short trip south (by car) to Big Sur - a town that the sixties are still alive and well in ! Even shorter trip to the Pacific Grove area - where the Monarch butterflies mate and winter. Also the 17 mile drive is here - gorgeous golf course/park/Pacific beauty - unmatched scenery.
KOAR - Marina - nice small town - they have some gnarly (and dangerous) surf.
Van Nuys (KVNY) to KLAS is a great trip - we've gone that route in less than an hour aboard a B200. 1/3 of the way in - look to your left at Edwards AFB. From Las Vegas it is just a short hop to the Grand Canyon and Hoover Dam. Also if you have some money to burn (besides on the tables in Vegas) Lake Tahoe is beautiful. Another 220nm further SE is KPHX - Pheonix Sky Harbor - I have never been there but so many GA pilots rave about this place.
Just north of SFO is California wine country - excellent touring and once again great, great scenery. Just watch out for the big stuff coming in from places all over - busy ADIZ.
One thing you will notice are the people of California - they are without a doubt some of the happiest, hippest and kindest folks you'll ever meet (especially in the Central and Northern parts).
Mohave and So Cal Logistics Airports - Check out the moth balled aircraft.
I missed a chance to visit them. Good one !
Have Fun !