What gives the color to the reefs in Fiji is the currents...... soft coral polyps extend in the currents giving way to fantastic color. That said, you will find some very pretty reefs on your first week to north shore Viti Levu as well as in Taveuni and Kadavu. Taveuni is absolutely beautiful with many topside interests, waterfalls, etc. But the main diving area is the Somosomo Straits best known for the color (Great White Wall) during the incoming tide. You can dive this area in slack tide, but the colors are noticeably less vibrant. My suggestion is Kadavu, as there are several beautiful dive sites for novices with little or no current. There is also a Manta cleaning station where Manta sightings are all but certain.