A Coast Guard spokesman tells ABC7 News that two surfers got in trouble in Dillon Beach in Marin County. One of them had to be pulled from the water by a rescue boat.
And at Ocean Beach in San Francisco, rescue crews were called in to help six surfers. Strong rip tides near The Cliff House created a challenge for those surfers.
A Coast Guard helicopter helped locate some of them. Rescue boats also patrolled the beach as part of the effort.
One of the surfers may have suffered a minor shoulder injury, but none of them had to plucked out of the water.
High surf warnings are in effect all weekend, which is creating challenges for surfers throughout the Bay Area.
"It's definitely a heavier wave today," said surfer Sean Moler. "I come down to Linda Mar a lot and it's normally pretty light and easy. Today it feels more like Ocean Beach. They're calling them the sneaker waves, the occasional rogue wave that comes through."
At Linda Mar in Pacifica, surfers spent a sunny day out on the water. No calls for service from rescue teams there.
But the high surf warning stays in effect through Sunday afternoon, which is when the Mavericks competition in Half Moon Bay should be wrapping up for the day.
Organizers will no doubt be keeping their eyes on surf conditions there.