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Motu Nui

Motu Nui, right there by the iconic birdman islets, offers a different kind of Pacific diving. It’s not about the usual rainbow reef chaos, but rather an experience in stark, volcanic beauty. We love dropping into the dramatic underwater topography here, all those deep blue slopes and crevices carved by ancient lava flows. Look closely and you’ll find species you simply won't see anywhere else – the lime-spot butterflyfish and cigar wrasse are real show-stoppers, along with the endemic Pacific Gregory darting through the cauliflower corals. The deeper sections can bring bigger pelagics; we've had a few heart-stopping encounters with bull sharks cruising by, though they're not an everyday occurrence. The visibility is usually excellent, letting you appreciate the scale of the landscape. We’d suggest keeping an eye out for the smaller stuff too, like the lamellose wentletraps tucked into the cracks. It's a site that rewards observation rather than frantic searching, ideal for intermediate divers who appreciate geological drama as much as unique fish.