Irish tourists have been flocking to Spain in their thousands since the return of international travel last summer.
The EU Digital Covid Cert allowed holidaymakers to return to the skies and the sun soaked beaches of the Mediterranean.
However the rules are always changing and evolving as the continent adapts to living with Covid.
And some crucial changes have been made in recent days that will impact Irish tourists looking to head to the holiday hotspot.
Here is everything you need to know:
EU Digital Covid Cert
From February 1, travel to and from Ireland across the bloc was impacted by changes to Digital Covid Cert rules.
Under the new guidelines, a 270-day validity period will be applied to the vaccine certificates.
This means that for people who were vaccinated over nine months ago and have not had a booster, they will not be allowed to claim a vaccine exemption to enter other EU countries such as Spain, Portugal, Italy and Greece.
As for travellers who have recently recovered from infection, they must prove they have a recovery cert within the last 180 days or a negative test result.
Around 44,000 people in Ireland who were fully vaccinated before May 1 last year were yet to receive a booster shot before the February 1 deadline, meaning they were barred from travelling overseas to EU nations.
However people who have availed of their booster jabs will be able to travel using their updated certs.
Unvaccinated passengers
The Spanish government has also updated its testing rules for unvaccinated passengers arriving in the country.
Instead of allowing people to present negative antigen test results taken 48 hours before arrival, a new time limit of 24 hours has been brought in.
The recent changes took effect on February 1, according to a statement published by the government.
This means that unvaccinated Irish passengers heading out that way soon will need to organise their testing to ensure it falls within the new limits.
The existing EU travel rules for the vaccinated will still apply in relation to the Digital Covid Cert for travel to Spain.
Therefore, passengers with acceptable proof of vaccination in the last nine months, or proof of recovery from Covid-19 in the last six months, won't have to show an additional pre-departure negative test result.
However despite the changes to antigen tests, the 72-hour rule for those presenting a negative PCR test will remain the same.
According to figures published by the World Health Organisation, there have been 9,660,209 cases of the virus in Spain and 92,767 deaths since the beginning of the pandemic.
With the emergence of the Omicron variant in Spain, certain regions are currently under more strict measures than others.
Passengers are warned to check the measures in place at their destination before boarding their flight.
