Welcome aboard, Crystal! You must be setting sail on the beautiful Disney Fantasy for a magical cruise to the Eastern Caribbean! What fun you have in store! Those islands are some of the most beautiful, which make for amazing days in port.
When you
log into your reservation online to begin your online check-in process (75 days prior to sailing for first time cruisers, 90 or more days prior for those who have sailed with Disney before), you'll be able to view the departure times for these particular Port Adventures. Since I can't access your exact reservation, I can't see what the departure times are for these adventures, but I can give you a bit of information. Disney Cruise Line requires at least 90 minutes between the end of one adventure and the departure of another if a guest is going to book two. The computer system will not allow you to book both if there isn't that time allotment in between. So, when you're able to begin booking, check out the times of those adventures and see if you can select both. If not, the computer will not allow you to do so, as there is a chance you may miss the second adventure due to a longer running time for the first or an overlap in times.
I suggest that you choose which of those two is of most interest to your family and book that one first. Then, if you're able to add another because the timing works out, great! But if not, I promise that even just one Port Adventure with Disney Cruise Line will be very memorable and enjoyable because Disney takes care of all of the details! Happy planning, Crystal!