Skylawn Memorial Park in San Mateo celebrates Dia de Los Muertos (or Day of the Dead) with a traditional presentation of the altars; a religious service; mariachi music; Aztec drums and dance troupe Saturday); folkloric dancing (Sunday); complimentary traditional lunch; sugar skull decorating; and work from local artists. The ancient Hispanic grave-decorating tradition is conducted every fall to celebrate the deceased and encourage visits by their souls. At Skylawn, more than 300 guests are expected to attend the festival to witness and participate in its time-honored rituals. The event is free and open to the public. A religious service begins 10:00 a.m.