Parents need to know that this cartoon series for young children is filled with positive messages about kindness, respect for others, honesty, and responsibility. Preschoolers will easily relate to the troubles that Olly and his friends face, and they'll benefit from seeing how communication helps the group resolve problems and improve their social behavior. In some scenes, predatory sea creatures like sharp-toothed barracudas chase the little subs, but overall the tone is light and shouldn't frighten youngsters.

Families can talk about responsibility and doing a job well. What jobs do Olly, Beth, and Skid do for Diver Doug? How do they use their individual talents to get the jobs done? What might happen if they didn't do their work? Why is it important to do what we're asked to do? Kids: What responsibilities do you have? What would happen if you didn't live up to them? Families can also discuss the issues raised by the show -- including honesty, forgiveness, and self-confidence -- and relate the stories to kids' own experiences.