Locate your account management setting when selecting your name on the top right (computer view) , then go to Household and Member Update. Once you get to this page, you will scroll down to the bottom past your personal information, and click the yellow "Add New Member" button.
 

After adding the member, please make sure the Age and Residency of the child/account is Verified. Once the account is verified, then you must fill out the Summer Camp Participant Information Section prior to any summer registrations for children. Finally, your account is ready for enrollment without error. Ultimately, you can do this in-person at any community center if the website process is not ideal.