Always bigger and colder than it looks, this is the first consistently surfed spot south of Point Mugu (it's actually just north of the Los Angeles County line). Once called Pete's Reef for the burger stand that once stood on the cliff, County Line can be a fun hot-dog wave, while the beachbreak can get nasty and hollow at high tide. It is probably the most visible surf spot on this stretch of highway, but the indistinct lineup can be hard to figure out, and that spreads the crowd around nicely.On the north end of the beach, there's a kelpy point/cobblestone right that consistently offers the best waves. It lines up best on W and SW swells with a medium tide, though the beachbreak gets plenty of traffic during the summertime souths. There's also a hollow, rock-riddled left at the far north end.
Source: County Line/Yerba Buena Beach Surf Guide