Located on Fiji’s largest island, Nadi (pronounced Nandi) is the main cruise port for the South Pacific nation. While there are a few things to see and do here — namely, shopping at a handicrafts market and admiring the colorful Sri Siva Subramaniya Hindu temple (Fiji’s population is split between indigenous Melanesians and Indians who arrived in the 19th century) — Nadi is also the gateway to nearby islands and their underwater treasures.