(Photo courtesy of San Francisco Mayor London Breed/Twitter)

Thousands of students and their families throughout the Bay Area walked or bicycled to school Oct. 2 as part of the annual International Walk and Roll to School Day.

In San Francisco, more than 80 schools participated in the event, with city officials joining in on the activities.

San Francisco Mayor London Breed, state Sen. Scott Wiener and Assemblyman David Chiu led students from El Dorado Elementary School in the city’s Visitacion Valley on their way to school. Supervisor Shamann Walton, an El Dorado alumnus, also joined.

International Walk and Roll to School Day aims to bring awareness toward making streets safer for pedestrians and encourages kids to engage in physical activity, reduce traffic and help the environment, according to the organization Walk San Francisco.

Meanwhile in Alameda County, thousands of students from 150 schools throughout the county took part in International Walk and Roll to School Day.

(Photo courtesy of Bike Walk Alameda)

Alameda County supervisor and county Transportation Commission Chairman Richard Valle said in a statement the event is “effective in inspiring students and their families to continue to choose healthy and active transportation choices,” well after the event is over.

In Sonoma County, more than 8,000 students from over 60 schools walked or biked to school.

According to the Sonoma County Bicycle Coalition, some participating schools have pledged to hold Walk and Roll Wednesdays once a month or quarter in order to inspire families to continue being active and to rely less on vehicles.

Just one student walking a mile to school one day a week can save about 100 pounds of carbon dioxide from being released into the atmosphere, Sonoma County Bike Coalition officials said.