Thetford Reef

Thetford Reef Explore the Magnificent Coral Reef

Located 70km Offshore from Cairns, Thetford Reef is part of the outer Great Barrier Reef, easily accessible by boat from Cairns for an unforgettable day trip.
Brilliant Snorkelling & Diving Conditions—With crystal-clear waters and excellent visibility, Thetford Reef is ideal for snorkelling and scuba diving adventures.
Home to Colourful Coral Gardens – Explore vibrant coral bommies, soft corals, and intricate reef systems teeming with marine life.
Abundant Marine Life – Spot various reef species, including clownfish, parrotfish, sea turtles, giant clams, reef sharks, and graceful rays.
Sheltered Lagoons & Calm Conditions—Thetford Reef offers protected areas with calm waters, making it a great spot for beginner snorkelers and divers.
Popular for Underwater Photography – The stunning coral formations and colourful fish make Thetford Reef a favourite destination for underwater photographers.
Part of the Great Barrier Reef Marine Park, the reef is a protected area, ensuring its pristine beauty and rich biodiversity are preserved for future generations.

location: Latitude 16°48’23.6″S Longitude 146°10’30.4″E
Access by boat
Depth Range: 5-20 metres
Visibility: 15-20 metres
Suitable for snorkelling and scuba diving.

Discover Thetford Reef,

Welcome to Thetford Reef, an aquatic paradise nestled within the breathtaking wonders of the Great Barrier Reef, right off the coast of Cairns, Australia. Prepare to embark on an unforgettable journey as we unveil the secrets of this natural wonder and help you plan your dream visit.

Nature’s Masterpiece

Thetford Reef, a jewel in the Great Barrier Reef Crown, is a testament to the beauty of nature. With crystal-clear waters and an explosion of vibrant coral formations, it’s a world where colour knows no bounds. Dive into an underwater realm alive with marine life, where every nook and cranny tells the story of this incredible ecosystem.

Thetford Reef is one of the Cairns Southern Reefs, located 70 kilometres east of Cairns. It is considered an essential reef for tourism and recreational use.

This two-kilometre-long reef is closer to the mainland than other more popular but distant sites. It seems to have good visibility, plenty of colours, and many coral heads. Several sites have canyons and passages to explore. This reef has several large bommies and numerous swim-throughs.

This protected lagoon offers snorkelers and scuba divers several bommies to explore with a vast array of smaller fish.

It is ideal for first-time introductory divers, making it a popular choice for Prodive’s learn-to-dive course.

Excellent overnight anchorage and shallow-water diving are available at this reef location.

What to Expect at Thetford Reef

1. Vibrant Marine Life

Prepare to encounter various marine life, snorkelers, and divers. Enter playful clownfish, graceful sea turtles, and majestic rays as you explore the reef’s depths.

2. Pristine Coral Gardens

Boasting pristine coral gardens that house an astonishing diversity of corals, marvel at the intricate shapes and colours that make this reef a living work of art.

This reef has large Gorgonian corals, Boulder Head corals, and soft corals. In the Gorgonian coral, look for pygmy seahorses.

Marine Life

This reef has anemones, damselfish, butterflyfish, and angelfish out for pipefish, giant clams and Rabbitfish.

3. Crystal-Clear Waters

The waters surrounding Thetford Reef are exceptionally clear, providing ideal conditions for snorkelling and diving. Immerse yourself in this underwater wonderland and experience unparalleled visibility.

When to Visit

The best time to visit is during the dry season, from June to October. During these months, the weather is mild and the water visibility is at its peak, ensuring an optimal experience for explorers of all skill levels.

Responsible Tourism

We are committed to preserving the beauty of Thetford Reef for generations to come. Our tour operators prioritise responsible tourism practices to protect this delicate ecosystem. Please follow our guidelines during your visit to help us in our conservation efforts.

Plan Your Adventure

Getting There

To reach Thetford Reef, book a boat tour from Cairns. Several reputable operators offer day trips, making it convenient for you to experience this natural wonder.

What to Bring

Don’t forget to pack sunscreen, a hat, and sunglasses to protect yourself from the Australian sun. If you plan to snorkel or dive, bring swimwear, a towel, and an underwater camera to capture the magic of the reef.

The popular dive sites

Popular reef sites include 360 and East meets West, Cathedral, and Blue Lagoon. Silverswift and Prodive visits have moorings at this reef.

Thetford Reef Frequently Asked Questions and Answers

Thetford Reef Map

Book in Advance

It’s advisable to book your Thetford Reef tour in advance, especially during peak tourist seasons, to secure your spot and ensure availability.

Why Thetford Reef?

Thetford Reef is more than just a destination; it’s an opportunity to connect with nature in its purest form, whether you’re an avid diver, a snorkelling enthusiast, or simply seeking a serene escape that promises an experience that will leave an indelible mark on your heart.

Come and experience the magic at Thetford Reef, where the natural beauty of Australia comes to life beneath the waves. Your journey to this underwater paradise awaits.