is that anywhere near salinas?
I would not recommend it unless you generally like the desert.
driving down from seattle to monterrey the first two weeks of august
going to be camping and seeing some sights, wouldn't mind checking out some pool
main interests there would be visiting historic pool places, and watching high-level play
are there any cool out-of-the-way spots/hidden gems? where should I go?
In California we spell Monterey with one R. Monterrey is a little farther on, so be careful if you are using google maps.
I think there is more to see if you come down US 101, including the aforementioned Buffalo Billiards in Petaluma. Just before Petaluma, you will go past Doghouse Billiards in Cotati, which was the first iteration of Buffalo Billiards.
A simple manual google search along your route will show some other possibilities, such as Bobalou Billiards in Roseburg, Oregon. If you ask Google Maps for a route, you can then search for pool halls along that route. Sometimes it works.
Family Billiards in San Francisco
California Billiards in Fremont
Fast Eddy's in Capitola
Easy Street in Monterey -- where one of the JS's ran 626 and the table is still there.
Sacramento (Hardtimes and the Jointed Cue) is on the I-5 route.