Persons arriving in Nigeria must have valid passports and visas obtained from the Nigerian embassy or consulates. Malaria is endemic, and suppressants are recommended. Tap water is not potable. Fruits and vegetables should be carefully prepared and meats cooked until well done. Telephone calls to the US and Europe are via satellite.
Facilities exist for overseas cables, telexes, and radiotelephone messages to ships at sea.
Lagos is 6 hours ahead of Eastern Standard Time. Several international airlines provide regular service to Nigeria. Nigeria Airways and private carriers provide domestic air service. The country has about 16,000 kilometers of paved roads, including some four-lane highways. Railways are used primarily to transport agricultural and commercial goods.