Yes, you can make reservations go to the universal web site and click on citywalk and it will be listed with a phone number there. You will love it. Have a great trip
Do you NEED to make reservations for Margaritaville? I'd rather not make reservations and see how the day goes. We are staying at RPH and I thought I read you could show your room key for PS at the Citywalk restaurants.
I don't think you can make advanced reservations at Margritaville. You can do same day reservations or use your room key for next available table. However, if it's really busy, the next available table may not come up until 1-2 hours.