Word on the Reef

Think you know Australia’s best dive sites? Think again! Marine biologist and scuba legend Steve Sinclair has spent over five decades exploring every reef, wreck and cave from Tasmania to the Top End — and now he’s revealing the Top 50 Dive Sites in Australia.

From world-famous coral gardens on the Great Barrier Reef to secret, world-class dive spots you’ve never heard of, Steve shares insider stories and tips from a lifetime beneat...

What do underwater art museums, bomb tests, and citizen science have in common? They're all part of the story of the Great Barrier Reef’s past, present—and possible future.

Our guest this week is Dr. Adam Smith—freediver, marine biologist, and founder of Reef Ecologic, a Townsville-based social enterprise leading innovative reef conservation through research, education, and community action.

In this episode, we dive in...

Today we're traveling back to South Australia for an update on the devastating toxic algal bloom that's been unfolding there over the last seven months, and what it it's been like for the divers who know and love these waters.

Marine Biologist and Divemaster Sarah Franke from Divers for Climate has just returned from a research trip to learn about how the disaster is impacting the South Australian community. She'...

First Nations people have been caring for land and sea along the Great Barrier Reef Coast for thousands of years. In this powerful interview, Traditional Owner Gavin Singleton explains the enduring connection First Nations people have with the Reef, what they're doing to help protect it, and how we can all foster a stronger connection with each other and the Reef.

The didgeridoo recording at the end of this episode is from Gavi...

💸 WIN $100! Fill out our Word on the Reef Listener Survey before 30 September 2025 to go in the draw.

🪸 Scott Reef, Australia’s largest remote offshore reef, is a breathtaking sanctuary for corals, fish, rare sea snakes, nesting turtles, and pygmy blue whales. But this natural wonder is under threat from a mega gas drilling and carbon dumping proposal. Fossil fuel campaigner Louise Morris from the Australian Marine Conservation So...

Cyclones are part of life in the tropics, but climate change is making them stronger and more destructive. On the Great Barrier Reef, their force can pulverise thriving coral gardens into unstable rubble fields where baby corals struggle to grow. But there’s hope! In this week’s episode, we dive into an innovative solution that’s helping damaged reefs bounce back — and discover how you can play a role in bringing them back to life ...

💸 WIN $100! Fill out our Word on the Reef Listener Survey before 30 September 2025 to go in the draw.

🌱 Seagrass meadows are the unsung heroes of the Great Barrier Reef – nurseries for fish, food for turtles and dugongs, and a frontline defence against climate change. But after a massive die-off, Dr Tim Smith and the team at JCU TropWATER faced a huge challenge: how do you restore these fragile ecosystems while dealing with crocod...

Ever dreamed of exploring the Great Barrier Reef for free—while making a real difference? With Reef Check Australia, volunteers can join survey dives and help clean up marine debris, all while experiencing the Reef up close. But what does it take to become a qualified reef surveyor? In this episode, Reef Check Australia’s General Manager, Jodi Salmond, shares how you can get involved and play a hands-on role in protecting this natu...

What has no arms, no legs, and no brain, but can flash like a disco light, help control pests and kill you in minutes? Queensland Museum's mollusc expert Darryl Potter has spent three decades fearlessly tracking down these armoured beasts all along the Great Barrier Reef, and he's here to tell us why they're more than just an ornament for your bathroom. It's one shell of a show!

Support the show

PROTECT THE REEF -...

Growing up with ADHD and Dyslexia, Aliah Banchik never thought she could achieve calm focus, let alone become a successful scientist, artist and Netflix star. Then she discovered sharks.

In this inspiring episode, Aliah shares her mission to reshape how we see both sharks and neurodivergence, revealing the beauty in misunderstood animals and people alike.

We’ll also chat about her journey on Netflix’s All The Sharks—no spoilers, we p...

Did you know some of our marine fish are living DOUBLE LIVES? That’s right, they want the best of both worlds, saltwater and freshwater. So one minute they’re living the dream on a beautiful coral reef, next minute they’ve decided they need a tree change, and they’re swimming up into our rivers. What are they doing there? And importantly – what happens when humans build dams, causeways and other watery traffic jams that block these...

Whale sharks—harmless, majestic giants—have long been mystery visitors on the Great Barrier Reef, their movements shrouded in secrecy... until now. In a groundbreaking discovery, scientists have identified the Reef’s first known whale shark aggregation site. Join us as we uncover where these elusive creatures have been hiding with Ingo Miller—marine biologist turned shark detective. On a mission to find and protect the world’s larg...

Australian comedian Kirsty Webeck loves sea creatures. She's learned a lot about them through her lifelong passion for snorkelling - and now she's here to share what the sperm whales don't want you to know.  She is currently touring with her live standup show called Everything I Need to Say About Sea Creatures and it's a real hoot to have her joining us on Word on the Reef this week!

We also chat with Dave George...

Meet Mike Atkinson — former military pilot turned solo adventurer, survival expert, and filmmaker. In one of the boldest voyages ever attempted, Mike hand-carved a dugout canoe and sailed it 1,500 kilometres up the Great Barrier Reef — from Townsville to the Torres Strait — using only traditional, handmade fishing and hunting tools. No engine. No GPS. No esky.

Surviving on stingray, dried kangaroo, and sheer determination,...

Welcome to the ocean -- where your genitals are on your face, males give birth, and gender is more of a suggestion than a rule. You can snooze in a bubble of your own vomit or switch sexes overnight without anyone batting a fin. What a world!

This week we’re joined by Mike Scotland - marine biologist, underwater photographer, and editor of DiveLog Magazine. With 50 years of diving, thousands of dives, and two books under his weight ...

The 1990s was a wild west era for fishing on the Great Barrier Reef. Even after being declared a Marine Park and a World Heritage area, more than 95% of the Great Barrier Reef was still being fished, and things were heading downhill fast. Then came a bombshell report that exposed what was really going on beneath the surface -- and all hell broke loose. What followed was a fierce battle known as the ‘Trawl Wars,' and unfortunat...

Richard Fitzpatrick wants to change the way you think about sharks.

Ever since he kept a pet shark as a kid, Richard has made it his life’s mission to rewrite the story of one of the ocean’s most misunderstood predators. Now an Emmy-winning cinematographer, marine biologist and shark researcher, he’s spent more than 15,000 hours swimming with sharks — filming them, tagging them, and tracking them for science, often using wildly unor...

Did you know you can help with coral research on the Great Barrier Reef without even leaving your couch? On this week's episode of Word on the Reef, get ready to swipe right on high-value corals as we dive into the incredible world of citizen science.

Our guest is Nicole Senn, Head of Engagement at Citizens of the Reef and passionate ocean advocate, who reveals how everyday people all over the world are helping monitor coral he...

Did you know that deforestation up to 1,000 kilometres inland can harm coral reefs and potentially fuel outbreaks of coral-eating starfish? This week we explore one of the lesser-known but critical threats to the Great Barrier Reef: declining water quality due to land clearing.

Our guest this week is Sarah Sims, a conservation and land management expert, dive instructor, and underwater photographer based in Cairns. Sarah's love...