The Salvation Army is delivering an estimated 4,300 meals on Christmas Day to thousands of seniors and shut-ins in San Francisco.
More than 500 volunteers will deliver meals to San Francisco residents who cannot leave their homes due to age or illness.
"It'd be impossible to do this without our volunteers. They love it and several volunteers and their family comes back year after year," Major Mark Nelson told NBC Bay Area.
The effort takes hundreds of volunteers, Salvation Army officials said.
"It keeps me going knowing that it makes a difference," said Victor Chin, who says he has been volunteering for 10 years straight. "Even though you may not see it, it's always going to make a difference."
Lincoln High girls' basketball coach Jason Lee has been volunteering with his players for 20 years. "As a basketball coach, I have the good platform to really encourage them and I always think it's a good thing to give back to the community."
If you'd like to help out, you can visit https://volunteer.usawest.org