Domestic airlines connect much of the country through regularly scheduled and charter flights. The international airport provides connections to the world through two Costa Rican airlines and over thirty foreign air carriers which provide regularly scheduled service, and others that provide charter services. A modern system of hydroelectric generating plants provides abundant electricity. In 1994 the first geothermal generating station came on line providing an additional 22 megawatts of low cost energy. Water supplies are chlorinated and the quality is controlled by the State.
Water is safe to drink in all cities.