One of my students lives in Greece, a very popular tourist destination for people from all around the world, especially in summer, which is why lots of job opportunities. He wants to ask if it is permissible to work in this field, or rent rooms/villas to tourists, or create websites for rooms, etc.

Ustadh AbdulAziz al-Haqqan

Ya marhaba my dear brother Faris may Allah reward you for all the goodness u teach, ameen. This depends on if he is going to help in disobedience to Allah, like organizing mixed gatherings, parties, alchohol, and the likes of that then it becomes haram. So I need more details