The San Diego Zoo and San Diego Safari Park are running a promotion called Kids Free In October. Check it out now and go and have some fun.
Active Duty Military Service Members are always free with valid military id card.
Active Duty Military Service Members and their families can purchase discount tickets at their ITR offices.
Also, in the Family magazine, they are offering annual memberships for $10 off. Family magazines can be picked up at various locations. We picked our copy up at McDonald's.