>For several years he would go to a point just West of Tomales Bay, just above San Francisco, - < snip> – this area has the highest infestation of white sharks in the world.
And the reason for that is that Tomales Bay is a major breeding ground for the great whites. When I lived in Napa, Tomales Bay and the Point Reyes area was one of my favorite haunts .... but I never went near the water!!