This reputable outfit in Rotoava also has an annex on a motu near Tetamanu (which caters for pensions in the south). Six- and 10-dive packages go for 50,000/80,000 CFP and can be used at any of the Topdive centres in French Polynesia (Tahiti, Bora Bora and Rangiroa). Day trips to Tumakohua Pass cost 31,000 CFP including lunch. Free pick-up.
Prices are high, but Nitrox dives are offered at no extra cost.