There is a good number of domestic flights in Tanzania. Tanzania is a large country. Currently, the airlines operating within Tanzania are: Air Tanzania, Precision Air, Flightlink, Coastal Travels, Air Excel, Regional Air, and Tropical Air. These operate airplanes of various passenger capacities, from three seats upwards. These airlines operate schedule flights as well as charter flights. Not all parts of Tanzania are served by schedule flights – some as reached by small charter flights. For instance, Mahale National Park, that island in Lake Tanganyika where chimpanzees dwell, is reached by boat and small charter flights.