Explore the Wonders of Thetford Reef

About Thetford Reef

Situated 70 kilometres east of Cairns and just a short boat trip from the famous Green Island. Thetford Reef is a hidden gem waiting to be discovered. Spanning 2 kilometres, this pretty reef offers diverse underwater landscapes.  Scattered coral heads to sandy floor areas teeming with marine life. With several swim throughs and captivating dive sites. Thetford Reef promises an adventure filled experience for scuba divers of all levels.

Underwater Adventure Awaits

Thetford Reef is a playground for adventure seekers, with numerous canyons, passages, and swim throughs to explore. Dive into the crystal clear waters and discover a vibrant world of colours, where large Gorgonian corals, boulder head corals, and soft corals create a beautiful backdrop for your under water exploration. Watch for elusive pygmy seahorses hiding amongst the Gorgonian coral, exciting your dive.

Encounter Larger Marine Life

Thetford Reef is home to an impressive array of marine life, including larger pelagic fish such as mackerel, tuna, trevally, and wrasse. Dive alongside the majestic spangled emperor, red bass, and blue and gold fusiliers as they navigate the reef for food. With its shallow night diving opportunities, you can encounter nocturnal marine creatures in their natural habitat.

Snorkeling Thetford Reef

Snorkeling at Thetford Reef offers a captivating glimpse into the underwater wonders of the Great Barrier Reef. A kaleidoscope of vibrant coral formations, home to a stunning variety of marine life, will greet you as you float through the crystal-clear waters. Schools of colourful fish dart among the corals, while graceful sea turtles glide effortlessly through the turquoise depths. With each breath, you’ll feel a sense of wonder and awe at the sheer beauty and biodiversity surrounding you. Whether exploring the shallow coral gardens or venturing further to discover hidden coves and bommies, snorkelling at Thetford Reef is an unforgettable adventure that will leave you with memories to last a lifetime.

Captivating Dive Sites

Explore the depths of these captivating dive sites, each offering its own unique charm and allure. From the panoramic views of 360 to the tranquil beauty of Blue Lagoon, every dive promises a beautiful experience filled with wonder and excitement. Dive into the cathedral’s depths and discover this underwater sanctuary’s amazing beauty.

Marvel at the Marine Life

Keep your eyes peeled for anemones, damselfish, butterflyfish, and angelfish as they dance amongst the coral formations. Encounter giant clams and rabbitfish as they go about their daily lives, adding to the vibrant tapestry of marine life that live on Thetford Reef.


Embark on a journey of discovery and adventure at Thetford Reef, where every dive promises a fantastic encounter with the wonders of the under water world. Whether exploring its captivating dive sites, encountering more significant marine life, or marvelling at the vibrant coral formations, Thetford Reef will surely leave you amazing and longing for more.

Explore the reefs nearby