Ghirardelli Square Tree Lighting

Head to Ghirardelli Square for their annual tree lighting ceremony, a special event that has become a tradition for many San Francisco families.

This year's festivities include live music, strolling holiday carolers, children's entertainment, and a visit from Santa.

Be sure to be there at 5:30 p.m., when the majestic, 35-foot Christmas tree is lit up to ring in the holiday season.