Your posting shows a romantic illusion about your trip to Spain. Most people visiting Spain feels that way in some form or another as Spain has that capacity to bewitch people. It inspired people like Hemingway to mention one.
I, don’t know how old you are and what you expect from your life. If you change your mind/life style in future, it be very difficult to shift this type of a property irrespective of the state of the market, leaving the property unattended will only encourage vandalism/break ins etc.
I, should think long and hard. Perhaps you should rent a place and see how you feel during the seasons.