Brainstorming: What could Horizon Paradise Beach be a front for?

Hi Chummers,

I am currently planning a run to show my players why we don't trust horizon being the "good guy" AAA.
I am exploring the idea of using Horizon Paradise Beach (a high security holiday resort mainly for horizon employees in the south of france) as the setting for the run. Now I am asking myself what horizon could hide in the operations of a holiday resort.

One idea I had was, that they are using their waste produce so close to the ocean to create more toxic spirits for them to work and research on, but I am unsure if that is to abstract for my players.

Do you guys have ideas what could be hiding behind the beautiful sunny days and white beaches in a horizon resort?