Welcome aboard, Tina! You must be really looking forward to your cruise! It's coming up very soon!
When you go into your online check-in and attempt to book Port Adventures, you'll need to take a look at the age restrictions on each Port Adventure. If an adventure states that it is for ages five and up, for example, you will be unable to take your two year old, and the system online will not allow you to add him or her.
If you still would like to experience that particular adventure, schedule some time for your two year old in the nursery onboard the ship while the rest of your family heads out on the adventure. The counselors there have fun activities planned each day for the little ones, and you can rest assured that your child is in great hands!
Alternatively, you can take a look at the
"Family Adventures" under the Port Adventures. These are all of the adventures that allow children. Now, you'll still have to look at the ages, as some do start at five or ten. But, you will see quite a few that list a price for ages 0-2. These types of adventures are perfect for your family! I hope you're able to find one that looks good to you.
I hope that helps as you browse the Port Adventures, Tina! Please let me know if I can help with anything else before you set sail!