Avaavaroa Drop Off is a classic Rarotonga big-water dive where sand channels funnel you toward a steep edge and the wall drops straight into blue water. The route is compact but serious, with the best dives following the channel cleanly to the lip and then deciding whether to stay on the wall or push out for passing pelagics. It suits divers who like current, sharky water and a dive plan that stays disciplined once the corner comes into play.