Hapuka Rock (Hereheretaura Pinnacle)

Hapuka Rock, also known by its Māori name Hereheretaura Pinnacle, is a beginner-friendly dive site in the Hauraki Gulf near Mahurangi. This prominent underwater pinnacle, named for the hapuka (groper) that inhabit the deeper sections of such formations, provides accessible diving around a structural feature that concentrates marine life in the productive gulf waters. The pinnacle rises from the surrounding seabed, creating a focal point for marine aggregation. The volcanic rock surfaces support healthy encrusting communities, and the structure's profile creates varied habitats from the sunlit summit to the shaded base. The Māori name acknowledges the cultural significance of the marine environment and the traditional knowledge that informed fishing and navigation in these waters. Marine life around the pinnacle reflects its aggregation effect. Snapper, blue maomao, and demoiselles gather around the formation, while crayfish and various invertebrate species occupy its crevices. The beginner-friendly conditions allow comfortable exploration of the pinnacle from every angle. Hapuka Rock provides an accessible introduction to pinnacle diving in the Hauraki Gulf, where geological structure and marine abundance combine in a setting of natural and cultural significance.