The Great Barrier Reef, Through Expert Eyes

Behind every True North adventure are the people whose knowledge and experience bring the landscapes, wildlife and ecosystems encountered along the way into sharper focus.

Aboard True North II, marine biologist Dr Dave Williamson brings decades of experience on the Great Barrier Reef to the guest experience, joining snorkelling excursions and sharing his knowledge where it matters most – in the water.

Dr Dave has spent decades working on these reefs, including with the Great Barrier Reef Marine Park Authority on coral restoration and reef recovery. His expertise gives guests a deeper understanding of an environment that is extraordinary to see, but even more remarkable when you understand what you’re looking at.

On one recent excursion, Dr Dave led a group out by tender before joining them in the water. He found a peaceful green turtle resting on the sand. Further along, the group encountered a giant clam, its mantle a deep electric blue and the animal itself older than anyone swimming alongside it.

These encounters aren’t scripted. They come from knowing the reef – its habitats, its inhabitants and where to look.

Travelling aboard True North II takes guests well beyond the most visited parts of the Great Barrier Reef, exploring remote sites, quiet channels and coral gardens away from the usual routes. With Dr Dave alongside them, guests don’t simply snorkel through these remarkable marine environments; they gain an expert perspective on what they are seeing and the complex ecosystem beneath the surface.

It’s the Great Barrier Reef experienced through the eyes of someone who has spent a lifetime understanding it – shared not from the deck of a boat, but snorkel to snorkel.


Great Barrier Reef Ultimate Itineraries

Each day aboard True North II is spent diving and snorkelling among coral gardens, manta rays, turtles, reef sharks and tropical fish, with time ashore on remote islands and quiet beaches. Among the sites few travellers ever reach is the Museum of Underwater Art, where sculptures rest on the seabed and, over the years, become reefs themselves.

Then there’s Raine Island – the world’s largest green turtle nesting site, a coral cay so protected that no one is permitted to land. Tens of thousands of turtles nest here each year, and almost no one ever sees it. True North II guests are among the few who do, diving and snorkelling off the island’s south.

With adventure boats and a helicopter aboard, there’s more than one way to see the reef in a day — under the surface, along the coast, and from the air, where the whole shape of it finally makes sense.

View departure dates for True North’s Great Barrier Reef itineraries.