Visas are not normally required if you are a US citizen. You must, however, possess an onward ticket out of the country. Permits are granted at the airport on arrival for a stay of up to four months and may be extended for up to six months. Fiji is a healthy country, free from most tropical diseases. Inoculations are not required unless a traveler is entering from a designated infected area.
Legal tender is the Fijian dollar.
Other main world currencies are accepted in Fiji. Most major credit cards are accepted in Fiji. Tipping is not encouraged in Fiji but you can leave a gratuity for excellent service if you wish. Fiji time is 12 hours ahead of Greenwich Mean Time. There is no trading on Sunday.