Is it permissible to participate in a tourism project that entails renting a beach and providing services to vacationers, and does selling shisha in the cafeteria affect the permissibility of the project?

The ruling on participating in a project depends on what is offered therein. Providing permissible services such as "renting boats and water suits" is not blameworthy. However, providing "hookah" is unlawful, because smoking is forbidden by Islamic law, and the money earned from selling it is illicit and must be disposed of by spending it on charitable causes, in addition to the necessity of ceasing to offer hookah in the project.