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Port Moresby · Papua New Guinea · Pacific

The Pinnacles, Port Moresby: PNG's vibrant coral towers

Descend into The Pinnacles to navigate colossal gorgonian fans and encounter a diverse community of reef residents and passing pelagics.

What makes this site special

  • Abundance of passing pelagic fish.
  • Magnificent gorgonian fan corals.
  • Vibrant pink seawhips and branching soft corals.
  • Rich variety of resident reef fish.
  • Encounters with pygmy seahorses (Hippocampus bargibanti).
  • Common sightings of sea snakes.
  • Excellent for underwater photography.

The Pinnacles about the site

Dropping into The Pinnacles, you're immediately struck by the sheer scale of the coral architecture. These submerged seamounts rise dramatically from the seabed, their facades draped in a tapestry of growth. The light filters down, illuminating the vibrant pink seawhips that sway gently, creating a dynamic backdrop for the reef's inhabitants. Your descent becomes a journey through a living sculpture, anticipating the pelagic encounters characteristic of open-ocean structures.

As you approach the main structures, the intricate details of the coral ecosystem emerge. The branching soft corals form dense thickets, providing shelter and hunting grounds for an array of resident reef fish. Their movements are a constant, intricate ballet, adding life and colour to every crevice. You’ll find yourself pausing often, observing the dynamic interplay between predator and prey, or simply admiring the healthy, thriving environment.

The Pinnacles is particularly renowned for its gorgonian fans, which can reach impressive sizes, creating a truly immersive experience. Navigating through these ancient, delicate structures demands careful buoyancy, allowing you to appreciate their complex beauty without disturbance. This careful observation is often rewarded with more subtle discoveries, especially for those with a keen eye for the smaller residents of the reef.

Among the numerous species that call The Pinnacles home, pygmy seahorses (Hippocampus bargibanti) can be found camouflaged among the gorgonians, requiring a patient and sharp-eyed search. These tiny masters of disguise are a highlight for macro photographers, demonstrating the site’s capacity to offer both grand vistas and intimate encounters. It's these moments of discovery that connect you more deeply to the site, revealing its hidden artistic details.

While the reef fish hold court, the promise of larger visitors always adds an extra layer of excitement to a dive at The Pinnacles. Passing pelagic fish are quite common here, often materializing from the blue as you explore the outer edges of the pinnacles. These larger species remind you that you are connected to the wider ocean, even when surrounded by the intimate beauty of the reef.

Sea snakes are also a common sight, gracefully patrolling the reef, their movements fluid and mesmerizing. Their presence is a reminder of the healthy ecosystem and the diversity of life that flourishes in these waters. For photographers, The Pinnacles offers endless opportunities, from the expansive coral formations to the subtle behaviour of its smallest residents, making every dive a potential portfolio builder.

Diving The Pinnacles: the marine life you’ll meet

Diving conditions

The best time to experience The Pinnacles is from late October until early December, a period characterized by calm seas and good visibility. During this window, you can expect optimal conditions for exploring the vibrant coral systems and observing marine life. Divers should be aware that from late December until early April, the wet season can lead to a decline in visibility across the region.

Three dives not to miss

Map of dive sites and dive centres in Port Moresby

Dive centres in Port Moresby

Frequently asked questions about The Pinnacles

When should you dive The Pinnacles for calmer seas and clearer water?

Plan your dive at The Pinnacles from late October until early December, when calm seas and good visibility support exploration of the coral systems and marine life. From late December until early April, the wet season can reduce visibility across the region, making underwater viewing less clear.

What marine life can you see at The Pinnacles?

At The Pinnacles, you can encounter passing pelagic fish, resident reef fish, and sea snakes. Patient searching among the gorgonian fans may reveal pygmy seahorses, Hippocampus bargibanti, camouflaged within the corals. The site combines larger visitors from the blue with smaller reef residents hidden among the growth.

What coral formations make The Pinnacles worth exploring?

The Pinnacles features submerged seamounts covered with vibrant coral growth. You can see magnificent gorgonian fans, vibrant pink seawhips, and branching soft corals forming dense thickets. These structures create a living underwater landscape, with reef fish moving through the corals and larger pelagic fish appearing around the outer edges.

Why is The Pinnacles appealing for underwater photography?

The Pinnacles offers subjects ranging from expansive coral architecture to intimate marine life encounters. You can photograph pink seawhips, large gorgonian fans, branching soft corals, resident reef fish, sea snakes, and passing pelagic fish. Pygmy seahorses provide a smaller macro subject for patient photographers with a sharp eye.