there are a lot of islands anyone in particular are you interested in??
I have stayed most recently on the "big island" Viti Levu at
Wananavu Beach Resort Accommodation Fiji it was a nice resort on the northside of the island....try to dive Bligh waters it is some of the best diving I have seen....all though....that trip most of my diving was done off of a liveaboard The Nai'a
I have also stayed on the island of Taveuni at Maravu Plantaion
Maravu Plantation - Beach Resort & Spa - Taveuni - Fiji Islands
and Nakoro resort which is called Jean-Michel Cousteau Fiji Islands Resort
Taveuni is a beautiful island...I wish I could have spent more time there...