Here's a helpful English language article, published today (June 4) that hopefully can dispel some of the confusion around Spain's tourism reopening - https://www.schengenvisainfo.com/news/travelling-to-spain-for-summer-2021-heres-what-you-need-to-know/
Some highlights from the article:
To anyone dreaming of endless summers of the Costa del Sol, late-night buzz of the ancient towns and cities, fresh dishes, or wandering in the streets of Barcelona, Madrid, Granada, and Seville, it might soon be a reality as Spain will welcome vaccinated tourists from June 7.
Spain has also abolished the restrictions on non-essential travel from the UK and Japan on May 24. Such a decision means that travellers from the two countries are no longer required to present a COVID-19 test or undergo self-isolation when entering Spain.
Additionally, the Spanish authorities have announced that the country plans to allow arrivals from the United States and other third countries from June 7, provided that the travellers have been vaccinated with one of the vaccines approved by the European Medicines Agency (EMA).
Travellers falling under this category should prove that they have received the required vaccine dose(s) at least 14 days before entering Spain. Nonetheless, everyone will still be required to provide a negative COVID-19 test result upon entry.
Similarly, all persons crossing the land border between Spain and France are obliged to present a negative COVID-19 test.
All travellers entering Spain must fill in a Health Control Form, which can be completed and signed in electronic form. After completing the form, a QR code will be generated, which then should be shown to the health authorities upon arrival in Spain.
If justified, the form can also be present in paper format. Everyone should note that a separate form should be filled for each trip and each person.
In line with the European Center for Disease Control guidelines, travellers arriving in Spain from high-risk countries for essential purposes must present a negative COVID-19 test result carried out within 72 hours prior to their arrival. The documentation proving that a person has no symptoms of the virus may be requested at any time while in Spain.
The negative test result document should include information of the holder’s name, their passport or identity card number, the date when the test was carried out, the issuing body, and the type of test. The test is recognised in four different languages, Spanish, English, French, or German.
As soon as travellers enter Spain, they are subject to health assessments such as temperature checks and visual examinations.
In addition, in order to be able to check into their accommodation, all persons travelling to the Canary Islands will be required to present a negative test taken within 72 hours of departure, regardless of their country of origin.
Exempt from the testing requirement are children under the age of six, people transporting goods or passengers, cross-border workers, and residents who live within a radius of 30 kilometres from the border with Spain.
Hope this helps 😃