We have been there 3 times and love it. Vahine Island is very small and intimate. It sits on a motu off the coast of Taha'a and there are only 9 total bungalows: 3 over water, 3 beach and 3 deluxe beach bungalows. This is a great place for sunbathing and relaxing in general.
The deluxe beach bungalows are very big, open, have a large deck and are really comfortable. There is a great view of the lagoon, Bora Bora and the reef. The sun sets directly in front of your deck every night. There are two ceiling fans, double sinks, a corner lounge area, king size bed, large deck w/two chairs and two lounge chairs, a CD player, and a DVD player with a flat panel TV. The TV is just for use with the DVD player, there is no TV Service.
The Beach bungalows are much smaller. One fan, smaller deck, one sink, no TV or CD player. They do have the same fabulous view as the deluxe bungalows.
You can arrange any kind of activity (diving, excursions etc.) through the staff. You have to leave the resort for all excursions. There is nothing else on the motu except the resort. The snorkeling is good right in front of the beach bungalows, although the water is shallow (3-5 ft). We've seen rays, starfish, eels, octopi and of course thousands of tropical fish.
The food is excellent. The dining area is open air for all three meals. Breakfast is an assortment of bread, jams, butter, juice, coffee/tea and fruit. You also have a choice of different egg and bacon combinations and an omelet. The homemade vanilla yogurt is to-die-for. Lunch is a small menu with great salads or beef/fish grilled with a salad or fries. You make your dinner selection during breakfast. There is an appetizer, main course and dessert. Although we don't drink there appears to be a nice wine list.
If you like to participate in a lot of different activities close by this is not the place to go. But, if you want drop-dead gorgeous, quiet and romantic, it's a great place. I also think the value for the price is great. I can answere specific questions if you have them.