Take your time and enjoy every single corner, lattice, room. Feel the overwhelming power of the light play, the pleasant sound of the water. Delight in the marvellous reflections of the stagnant water because you are in front of the only complete medieval Arab Palatino (Royal residence) building still perfectly preserved today.
Declared UNESCO World Heritage with the rest of the Alhambra, the Nasrid Palaces are the start of the visit. Be careful! I highly recommend scheduling a time and buying tickets online if you do not want to have the unpleasant surprise of endless lines or signs saying there are no tickets available!
I recommend getting up early, being the first ones to get in (I did at 8.30 am) as then you will be able to go at your own rhythm and be one step ahead of the enormous crowd of people, despite there being "limited" access. Come with comfortable shoes, water and something to eat because time goes by without you even noticing and once you are done visiting you will need to charge the batteries!
The Palatino buildings consist of the Mexuar, where the public administration and state offices used to be; the Palacio de Comares, official residence and the Palacio de los Leones, private area where you find the harem.