ONLINE TICKET PURCHASE:
Note that you can also renew your membership at the same time. Just click Continue Shopping after you've updated your shopping cart with your IDDD tickets (it will ask you if you want to close the window, click "Yes"), then click here: Renew Membership.
To purchase tickets online, select the type of ticket (Regular, Child, or Student) you would like below, then click the Add to Cart button. It will take you to a page where you can select the number of tickets you want.
If you want to buy different types of tickets, simply click Continue Shopping (let it close the web page if it asks) and select the other types of tickets you want on this page.