owners feel safe also. >> reporter: this volunteer foot patrol fans the neighborhood. >> two-thirds of the walkers are ladies in their 60s and early 70s. probably the average age is 65 to 68 years old. we tried to show a presence, try to make sure that individuals out there don't try to commit crimes. >> reporter: using police data from the largest counties shows reports of anti-asian hate crimes up 164% from the same time last year. the surge could be greater. they're often underreported. in oakland, there are four different groups conducting patrols. >> at least on every patrol, there are people that say thank you for coming down. we wouldn't be down here without