Visited the Farallon Islands a few years back hoping to see Great Whites. There weren’t any unfortunately. Maybe it was off season. The one other area on the Pacific side teeming with Great Whites is Guadalupe Island, Mexico. But it’s a little impractical to visit.
Have a dive buddy who did the cage dives at Guadelupe (Mexico). If those sharks really want to get into those cages they
can.