Hi i have just gone back to England and like everyone else ive had to have either a PCR test or a Antigen test 72 hours before leaving Spain.
I went to the clinic in Santa Pola just up the road on the right from the castle, i had a PCR test for €79, afterwards i found out the Antigen for €29 is exactly the same.
So don't be like me have the Antigen test 😢