l’arche is a Poindimié arch-and-pinnacle dive in New Caledonia with a dramatic overhead opening, giant gorgonians, and regular pelagic traffic. The route is boat-based through the Grand Passage, where the arch sits in open water and the timing of the drop-in matters more than a casual reef cruise. It suits experienced scuba divers who want an overhead feature, blue-water action, and a site that rewards clean buoyancy, a clear plan, and conservative turn pressure.