If they want jet skis on the beach, they need to have a centralized rental location farther up the beach where there are fewer swimmers and sunbathers. Renting the jet skis cannot be a profitable business. The Jamaican "employees" ride those jet skis around more than the tourists, and they drive the jet skis much like they drive on the road. With the cost of gas, the profits have to be miniscule. When the tourists were injured/killed, was the jet ski operator an "employee" or tourist?