You may recognize tunes to some of the hymns sung in Fijian churches, but the words and harmonies are beautifully Fijian. Church choirs sing a capella, and even children join in.
Church members often wear sarongs, and you should dress accordingly by wearing a long skirt and long sleeves.
Congregations are usually welcoming, and guests may even be asked to say a few words about where they're from. Ask at your hotel for a church nearby.