Prince Harry visited the island with his parents and brother in the 1980s staying at the Marivent Palace as guests of the Spanish royal family.
"Tourists ask for information on what projects are being undertaken and if they are improving Majorca's tourism infrastructure."
Graffiti has been appearing on dry-stone constructions and rock faces.
The Safe Tourism Plan will involve increased police presence and surveillance.
The interior minister laid a wreath in memory of the officers who were killed by a bomb in their patrol vehicle.