Well, hold on a second. You first might want to check the local rules and regulations for flying drones in Spain. Breaking those rules, even unwittingly, can land you with a whole heap of problemos, including hefty fines and the confiscation of your new best friend.
Firstly, there’s the commercial considerations. If you only want to film your holiday, that’s okay. If you’re then going to post them on a commercial blog or sell the images to someone else, you need a commercial licence.