One of the most popular surf spots in Southern California is teeming with man-eating sharks -- video clearly shows a handful of great whites lurking just under the surface as surfers catch waves.
Ya gotta see the footage from San Onofre State Beach ... there are 4 to 5 sharks swimming between the waves with more than a dozen surfers nearby, or in some cases, paddling right over the potentially killer fish.
The incredible video was captured by photog Kevin Christopherson's drone Friday over San Onofre -- one of SoCal's surf meccas -- and most surfers don't seem concerned about what's swimming underneath them.