Oneta Resort
If you want to get away from it all, this is the place for you. It starts with a small prop plane flight to Kadavu, followed by a 30-45 minute boat ride to what is basically your private island of Ono. The surrounding islands are where they film the Swedish and French versions of Survivor.
I believe there are 6 bures and 2 villas for larger groups. We stayed in the Turtle Lair bure at the top of a hill overlooking the resort and the views from the deck were worth the walk up the stairs every time.
It's not only the location, but the staff that makes this resort special. The staff is always smiling and laughing and making sure you have everything you need. The general manager Martin is amazing. He is Australian but grew up in Fiji and can teach you about the Fijian cultures and traditions. Everyone has breakfasts and dinners together and Richard always keeps the conversations going telling stories. The food is fabulous. Everything is fresh and we never had the same meal twice.
We went fishing for a day to try and hook a Giant Trevally that that resort is famous for. We booked a half day of fishing and because fishing was slow the guide stayed out with us for the whole day to ensure we caught lots of fish (although no Giant Trevally :( and we were only charged for the half-day charter.
As for the scuba diving, if you want untouched reefs where you are the only boat and the only divers you see for miles, this is the place you want to be. Because of its location, Oneta Resort dives the northern parts of the Great Astrolabe Reef. We were the only divers at the dive resort and we were the only divers we saw the entire week. The only other way to get to some of these dive sites is on a liveaboard. The soft coral is not as spectacular as the Rainbow Reef, but there are big walls full of life that start 10 feet below the surface and go down to the sandy bottom below 100 feet. There are lots of cool swim-throughs as well. When we were there they were in the process of building their dive center to house all of their gear and have more space as when we were there there was only a small shack where our gear was kept. Because all their power is provided by generators I doubt they will have any camera rooms with A/C. They made sure I had everything I needed when I was there to keep my camera and housing clean.
One island over and about a 5 minute boat ride away there is a manta cleaning station so anytime you are passing by they will stop and see if there are mantas there. If there are they will let you jump out and snorkel with them. We did this 3-4 times during the week. Unfortunately the week we were there was cloudy and rough so visibility wasn't great and we couldn't get any great photos of the mantas.
If you have non-divers in your group they will have lots to do here. They can arrange trips to the local villages, fishing, snorkeling, private beach trips, they have kayaks, SUPs, and even a Hobie Cat you are welcome to use. There were non-divers at the resort when we were there and they definitely didn't look bored.
