It depends where in Spain you are sailing from and which direction you are sailing in. The answer can be either Africa (due south from mainland Spain), Europe (due north from Ceuta or Melilla), North America (due west from mainland Spain - specifically Galicia), or South America (southwest from mainland Spain).
Africa
Africa
Europe
Africa would be the main answer, but there are parts of Europe where you could sail south and reach Asia, like sailing across the Black Sea to Turkey.
Spain is on the continent of Europe.
Africa is a massive continent, so it would depend on where exactly you were starting your journey from. If sailing from the north coast, you would come to Europe. Sailing from parts of the west of Africa, it would be North America that you would come to first.
It was a lot shorter distance for Leif to sail.
Spain is a country on the continent of Europe.
the morroco
It is located in Spain so that would be Europe!
Antartica
Antarctica
If you head south from South America you would reach the continent of Antarctica.