A range of activities and opportunities are available for primary aged children.

Sunday School includes the Infant and Primary Departments that are specifically structured and resourced to serve the needs of primary aged children. Children are introduced to bible teaching, craft activities, games, singing and the companionship of other children under the care of loving Christian leaders and helpers.

Children from families who have no other involvement with CHBC are most welcome to attend Sunday School. Any new starter in Sunday School is likely to meet other children they already know from their local school.

GEMS is a girls-only ministry of Castle Hill Baptist Church and caters for girls from Kindy to Year 6.

ROCs is a boys-only ministry of Castle Hill Baptist Church and currently caters for boys in Year 3 to Year 6.

During the July school holidays CHBC hosts a week long Holiday Club for primary aged children and during the first and third term school holidays CHBC hosts a one-day KidzXpress program similar to Holiday Club that also cater to primary aged children.