Ca. trip in Feb looking for beach and wine country RV parks

Just north of Santa Barbara there are two state parks - El Capitan and Refiguo. Both are nice parks, great beaches, but a bit pricey (welcome to California). In Buellton there is Flying Flags RV Park. This is a good home base to explore the many great wineries in the Los Olivos/Santa Ynez area. This area is where the movie "Sideways" was filmed. There is a self guided tour map that takes you to all the wineries/locations featured in the movie. Fun to watch the video the evening before, then do the tour.