Yosemite, Sonoma, Santa Cruz, Big Sur, Santa Monica, San Diego, Joshua Tree NP, Sedona.......)
If you only have a limited amount of time or money, hit up the Central CA coast over So Cal for sure.
Well, it depends....
santa monica and san diego will have crowded beaches with sun and hot chicks in g strings. But they are some of the most annoying self centered human beings on the planet and the beaches are filthy and polluted. I wouldn't want to go in the water is most areas. Traffic is some of the worst in the country.
Cental coast is unspoiled and gorgeous. However it will be over cast and in the 60s even in the summer.
Sonoma is good only if you like wine. Santa Cruz is fun. Put San Fran/Berkeley/East Bay on the list too.
Also, there's a good chance Mammoth will be open in June this year
if a cat fucked a shark, the babies would be called women. snowklinger