If you take the 101 north, just past the tunnel you will see a big sign with the words, "BLUEBERRIES" painted on it. It takes about half an hour to get there from SB, but it is very worth the drive.
We go picking every year, at least once and usually with the other mamatotos.
They open at 10am and it is pretty key to get there as early as possible, because it gets HOT. It's really sweet at the farm. They have little nostalgic metal pails for everyone to use while picking, and have some adorable farm animals on site to visit with.
We finish off each day by reading "Blueberries for Sal" and making a pie, topped with coconut cream.
Here are some of the "Little Sals" trying to sneak blueberries out of Ryan's pail: