Daniel Ballard sparked early scenes of jubilation in the away end at the San Moix Stadium in Palma before the hosts came roaring back, netting four times before the break.
Substitute Mikel Oyarzabal added a fifth for Spain, who go to Euro 2024 in Germany amongst the favourites for glory, in the 60th minute.
Here are all the best photos of fans enjoying some summer sun in the first of two friendlies in Spain – Northern Ireland will be back in action on Tuesday when they face Andorra at the Estadio de La Condomina in Murcia.
5. Supporting their team
A group of Northern Ireland fans get ready to cheer on their team in Spain. Photo: William Cherry/Presseye
6. Enjoying the occasion
Northern Ireland fans outside the San Moix Stadium in Palma. Photo: William Cherry/Presseye
7. Fans turn out in their numbers
Northern Ireland fans turned out in their numbers for the friendly against Spain in Palma. Photo: William Cherry/Presseye
8. Cheering on Northern Ireland
Northern Ireland fans get ready to cheer on their team in Spain. Photo: William Cherry/Presseye