Abram Uren, left, and Mireya Guzman of San Jose’s Grupo Folklorico Los Laureles dance in their colorful attire during the Halloween Dia de los Muertos Family Fun Fest at Jack London Square in Oakland on Sunday. Photos by Jane Tyska — staff photographer

Wendy Aguayo performs with a folklorico dance group during Saturday’s festivities at Jack London Square.

Children line up with their parents to participate in a Halloween costume contest, which was part of the fun families experienced on Saturday.