Hi, Julia! There is a convenient calender online that displays
Walt Disney Resort Park Hours that includes Extra Magic Hours. Simply navigate to the top of the page and enter in your desired days. The Extra Magic Hours is just one of many wonderful benefits Guests receive when staying at a Walt Disney Resort hotel.
It looks like on your first day, there are Extra Magic Hours in the morning at Disney's Animal Kingdom Theme Park. This is fantastic! I would get to the park just before opening, and head straight to
Kilimanjaro Safaris once the park opens. There will be a minimal wait that early in the day, and the animals are the most active in the morning. As the day warms up, the animals tend to seek shade and take a nice nap.
If you have any other questions Julia, please come back to the Disney Parks Moms Panel. We are here to help! Wishing you and your family a magical vacation!
~Rachel