Greece is waiving aircraft landing, takeoff and stopover fees from April until the end of the year in an effort to boost its tourism economy.

The Greek transport ministry said the waiver will apply to all airports except for Athens.

Greek tourism revenues fell by 20% last year following increased regional competition, strikes and anti-austerity protests. Tourism accounts for one in five jobs and 20% of the country’s GDP.

Tourism minister Pavlos Geroulanos reportedly said recently: “The combination of factors [against the sector] was like the perfect storm. Our priority this year is to make things better.”