use Ketchikan's medical services without the cost, inconvenience, or weather-related delays of flying. It shuttles workers to their jobs, reinforcing Ketchikan's status as the regional economic hub; Prince of Wales residents spent more than $14 million there in 2015 on groceries, goods, services, and medical care. The Inter-Island Ferry allows for cultural and social commerce as well. Students, tribal members, and other residents use the system to participate in basketball games, totem pole raisings, trainings, college fairs, celebrations, and funerals. There were 3,100 student trips last year. This allowed students from 13 different Alaska school districts the opportunity to challenge themselves and interact with their peers. It connects residents to family, friends, and recreation. The ferry is a critical piece of a more extensive transportation network. It provides transportation security on days when the skies are rough, and access to transportation to those who cannot afford alternative means. Nearly a quarter of the ridership last year were senior citizens and young children, who have saved a combined $17 million over the cost of flying since the system began in 2002. Its reliable arrivals and departures - so precise that people are said to set their watches by it - have enabled organizations to build their business models around this daily transportation connection. The result of the IFA's efficient operations is farebox revenue that covers a full 85% of the ferry's operational costs, a significant rate in the world of public transportation. The word businesses and residents most frequently use to describe the ferry service is "invaluable." While there are many intrinsic values of the system that cannot be measured, an analysis of the ferry's economic impact in the seafood, healthcare, visitor, transportation, and retail sectors shows an impressive $52.2 million combined impact in Ketchikan and Prince of Wales in 2015. Airports Klawock Airport is the only airport on Prince of Wales island. At least two commercial airlines in Ketchikan provide scheduled service to Prince of Wales island. Air taxi or chartered flights are also available from them and other airlines. Seaplane bases Scheduled airlines Communities Coffman Cove Craig Hollis Hydaburg Kasaan Klawock Naukati Bay Point Baker Port Protection Port St. Nicholas Thorne Bay Waterfall Whale Pass Notable ex-residents Holly Madison, American model and Hugh Hefner's former girlfriend. Elizabeth Peratrovich and Roy Peratrovich, early Alaskan civil rights advocates, heavily involved in passage of Alaska's Anti-Discrimination Act of 1945, first civil rights