My daughter will be vacationing in Spain (Madrid, Sevilla, Granada) for 10 days in April. She will arrive in Madrid. She just wants to get some local sim card for some data usage (check Google map, look for restaurant, etc.). Is there any inexpensive local sim card she can get? I would really appreciate it if you can recommend some local phone company and store location (either in Madrid airport or city center) where she can buy the sim card.
Thanks!