The Interior Ministry has opened a section within its website where information on all of the required procedures and documentation required for travel to any country worldwide for Spanish citizens.
On the web warn that the data refer to touristic stays of up to 90 days, unless the exceptions noted in the respective countries, and in any case we have to get in touch with the Ministry of Foreign Affairs and Cooperation.
For countries not included in the list, you need a visa issued by the embassy or consulate of the country who want to visit. For this we must look in several directories and websites of embassies and consulates of foreign countries in Spain:
* List of foreign embassies in Spain
* List of foreign consulates in Spain
* Map of foreign embassies in Spain
And to be safe when we are in the destination country, the foreign ministry has a form of Spanish embassies in foreign countries.