Gibraltar
Yes it is, I went about 3 weeks ago. It's a great one to have in your logbook.
You need to study the plates before you go espacially the ones about the wind, they are available from Jepp.
Also it is 24hrs PPR so be prepared.
Take loads of cash with you too, it is 20 pounds handling fee, 25 pounds landing fee for a light single and the 10 pounds per passenger over and above the pilot.
Let me know if you need any other info.
Polohippo