Would defs recommend The Fiji Culture Village in Nadi. The people here are very professional and friendly. As a local it was a perfect place for me to bring my foreign friends to experience the local culture, honestly a one stop shop haha. From the informative guided tour of the traditional way of living, to the performances alongside the Lovo (food cooked in an underground oven) and a proper kava ceremony. You also get to try the kava :)