10 minutes from Airport, Nadi is the gateway to Fiji Islands. There are many hotels, hostels, resorts, from luxury to very cheap prices. I suggest you should spend a night or two in this city on the way to the Yasawa, the Mamanucas or waiting for the flight. You can book the hotel at the airport. The prices will be similar.
Travel to Nadi to discover its open-air market, where you will discover the crafts of these islands, such as kava bowls made of wood, saris, or traditional hand-painted dresses.