There is no road leading to Dolphin Bay Divers Retreat. Trust us, even though your map might say otherwise. So renting an SUV is only going to get you to Buca Bay/Natuvu on Vanua Levu or to Taveuni.
Bighwatershipping.com.fj or

Consortshipping.com.fj, the SOFE ferry, leaves Suva twice a week for Taveuni, both have comfortable cabins and go via Savusavu

From Savusavu, take the bus to Natuvu (along Hibiscus Highway), and connect to one of the daily small ferries to Taveuni or we can pick you up from in Natuvu (about 30 minutes) by boat, Check our link page for more info