Desde la plaza donde está La Gran Isabel la Catolica, y te deja en la misma Alhambra.

Hi, the Alhambra's official site (run by the Patronato) has an FAQ which answers some of this; just google "alhambra patronato faq" and it should be easy to find. As Karen said above, it sounds like minors under 3 need a ticket but it seems to be free and doesn't require advance booking, you can pick it up at the main ticket office. I don't know if it's absolutely necessary or not, and unfortunately I don't know if it's possible to get that in advance so you don't have to do it on the day of... Maybe ask around in Granada or call ahead if you can. Entering through the Puerta de la Justicia won't help in this case if you need to go by the ticket office, but it's not a long walk from the ticket office to the Nasrid Palaces; probably around a 5-minute walk once you're inside. Also, in case it's relevant, keep in mind that strollers are not allowed in the palaces (see the linked FAQ for more info).

Mmm it's a good 10 mins walk. When we visited they prioritised people who were running late, but if you were early, they insisted you had to wait?!? Just get there as soon as you can, and speak to one of the staff. I'm sure you will be fine! Enjoy!

C´est posible d´acheter dans la page official de L´Alambra. On appelle: tickets alhambra patronato

Ciao, mi spiace ma non lo so, guarda magari su internet o su maps se indica qualche parcheggio nei pressi

We are from the UK and were asked to show our passp orts several times. Not sure if other photo iD is acceptable. If you have a passport, I would take it. Enjoy!

I think it depends on what your preferences are. If you want to see a romantic view with a lot of light below then a nigh time visit, if you are more into the Alhambras buildings, gardens, architecture, details and beauty of palaces then i would recommend the day visit.

I am not know as a romantic person but I think that you would get all that you need from one day time visit.