Kadavu Island is best known for the Great Astrolabe Reef that runs along its southern shore, and up passed Ono Island to the east. The reef (named after a French ship), is a breeding ground for big fish like tuna, marlin, GT and sharks. Gaps in the Reef, like Naiqoro Passage, see big fish action along their colourful soft coral coated walls and are also subject to currents.
Buliya Island, north of Ono Island, is famous for its manta ray snorkeling.
The resorts of Kadavu are quite spread out and shown on the map below.
Though Venu Shipping runs a ferry service between Suva and Kadavu, the service can take anywhere from 8 to 36 hours so is not recommended unless you have no deadlines whatsoever.
Because of the remoteness of Kadavu, the resorts tend to be modest, low-impact and largely self-sufficient.
Matava Resort on Kadavu’s southern coast is an eco-friendly resort which provides diving and snorkelling on nearly 30 sites on the famed Astrolabe Reef, including one known for its manta rays. The studio-style bures are well-spaced on a steep hillside and have simple, white-tiled bathrooms and excellent, unobstructed views of the ocean.