include: JP-8 generation by the lignocellulose process; military, including a possible runway; and windmill energy production. Robinson has declined offers to purchase sand from Niihau's beaches, because of adverse environmental effects. Tourism Niihau's owners have offered half-day helicopter and beach tours of the island since 1987, although contact with residents is avoided and no accommodation exists. Since 1992, hunting safaris provide income via tourists who pay to visit the island to hunt eland, aoudad, and oryx, as well as wild sheep and boars. Any meat the hunters do not take with them is given to the village. In popular culture The final missions of the campaigns in the 2007 real-time strategy video game Supreme Commander and its expansion, Supreme Commander: Forged Alliance take place on Niihau, which houses the Black Sun installation. The island is roughly portrayed correctly, and the missions also feature several fictitious islands around the island of Niihau itself. The Niʻihau Incident is portrayed in the 2019 film Enemy Within. References Further reading Islands of Hawaii Volcanoes of Hawaii Geography of Kauai County, Hawaii Extinct volcanoes Hawaiian–Emperor seamount chain Private islands of the United States Pliocene volcanoes Neogene Oceania Cenozoic Hawaii Private islands of Oceania