AquaBlue. Based just outside of Nadi, AquaBlue visits more than 20 sites in the Mamanucas using a 30-foot (30 meters) custom-built dive boat. Rates include US$54 for one dive, US$76 for a two-dank dive and US$254 for full certification. Pickups can be arranged from most Nadi-area hotels. Wailoaloa Beach, Nadi, Viti Levu. 672–6111. www.aquabluefiji.com.