Haapiti is a nice drift dive. At the coral plateau you can visit 3 large holes. It is then possible to see different excavations and mini caves. Diving outside the lagoon visibility is excellent and can sometimes reach 60m.
Its a dive site 10 minutes max by boat, and runs from north to west, but is exposed to waves and sometimes current. Going there will always depend on the weather conditions. Drift dive is recommended on this dive site but not mandatory.