Human habitation of King George Island is limited to research stations belonging to Argentina, Brazil, Chile, China, South Korea, Peru, Poland, Russia, Uruguay, and the United States. Most of these stations are permanently staffed, carrying out research into areas as diverse as biology, ecology, geology, and palaeontology. Base Presidente Eduardo Frei Montalva, the Chilean Station on the Fildes Peninsula, is operated as a permanent village with an airstrip (with large hangar and control tower along with other buildings), cafeterias for personnel of its several agencies there, a bank, a post office and comfortable ranch-style family homes with children.