When you are traveling to Spain I am pretty sure you want to keep the people back home up to date about how things are going on your trip. Surely you don’t want your Spain holiday to get ruined by outrageous roaming costs and therefore I recommend you buying a sim card in Spain. It is simple, just walk in to any mobile provider shop and ask for a prepaid Spain sim card, put it in your phone, activate it and within a minute your Spain sim card is connected.