If you were born in the 80s or 90s, the words "Coral Sea" will almost certainly ring a bell. Back then, most of us had no idea what scuba diving was, and the Great Barrier Reef was just some faraway place on a map. But "Coral Sea" — much like the name Jay Chou — was everywhere: in our lives and in every karaoke room we ever walked into.
Now we've grown up and become PADI (certification agency) divers. Poetry and distant horizons don't feel so out of reach anymore — yet somehow, "Coral Sea" stopped coming up in conversation. Until you stumble upon this dive destination… and the memories hit you like a freight train, dragging you straight back to 2005.
Today, I'd like to introduce you to what is arguably one of Australia's most world-class and least-known diving destinations — the Coral Sea!
The Azure Coral Sea
In the music video for "Coral Sea," the female lead actually works at a pet aquarium shop.
Lyricist Vincent Fang poured all his romanticism into the song he wrote for Jay Chou,
yet neither of them may have ever seen the real Coral Sea.
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You've heard Jay Chou sing about the Coral Sea — now do you want to visit the real thing in Australia?[/caption]
So Where Exactly Is the Coral Sea?
The Coral Sea is a body of water situated to the east of Australia, bordered by the Tasman Sea and the Solomon Sea. Covering an area of 4.79 million km², with an average depth of 2,243 m, it is one of the largest and deepest seas in the world.
Within the Coral Sea lie numerous islands and reef systems, including the world-famous Great Barrier Reef. But don't be fooled — visiting the Great Barrier Reef does not mean you've "checked off" the Coral Sea. You have to venture out to the open ocean to truly experience it. And that's exactly what the dive sites I'm about to introduce are all about!
The Coral Sea enjoys a tropical maritime climate, making it ideal for coral growth and attracting an extraordinary diversity of marine life. Six of the world's seven sea turtle species call this place home. Because of its rich biodiversity, the Coral Sea has long been designated as a priority monitoring zone by Australia's environmental authorities.
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This article will take you through the ten most celebrated dive sites in Australia's Coral Sea.[/caption]
--- What secrets lie hidden inside a shell ---
Ancient mountain ranges rising from several thousand metres below…
Countless reef systems named but still waiting to be explored…
Beneath the Coral Sea lies a world that no one truly
understands, yet everyone is captivated by.
Spirit of Freedom — one of two liveaboards based in Cairns that makes regular journeys to the Coral Sea. We first take a small plane to Lizard Island, Australia's exclusive private island resort, and then sail overnight to Osprey Reef.
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Itineraries of varying lengths allow you to plan your Coral Sea adventure and surrounding dive sites accordingly.[/caption]
Ten hours later, as the morning sun once again bathes the deck of Spirit of Freedom in golden light, we arrive at the reef system that has left countless divers around the world absolutely speechless.
Below, let me walk you through some of the dive sites you may visit on this liveaboard journey:
Top 10 Coral Sea Liveaboard Dive Sites
Coral Sea Liveaboard Dive Site 01 / North Horn
Want close, up-personal encounters with sharks — and plenty of them? This is the site for you. Near the main reef, you can clearly see a ledge that drops away to beyond 1,000 m, with an abundance of massive soft corals at 25 to 40 m. At 32 m, there is a commemorative plaque dedicated to a beloved local ocean enthusiast. This site is also used by researchers to monitor shark behaviour.
Species to look out for: Greytip Reef Shark, bumphead parrotfish schools, Whitetip Reef Shark, tuna, potato cod, Hammerhead Shark, parrotfish, and more.
Coral Sea Liveaboard Dive Site 02 / North Horn Wall
From the western wall of Osprey Reef all the way to North Horn, this is a thrilling drift dive along a vertical reef wall that plunges to 1,000 m. This site features shallow caves, drop-offs, overhangs, and vividly coloured soft corals, along with fish of all shapes and sizes.
Species to look out for: Greytip Reef Shark, soft coral, Whitetip Reef Shark, manta ray, dogtooth tuna, Maori wrasse, Hammerhead Shark, and more.
Coral Sea Liveaboard Dive Site 03 / Half Way Wall
True to its name, Half Way Wall sits between North Horn and another site called False Entrance. We moor at the edge of the reef, where numerous bommies rise from around 20 m. Watch your step — glance down and you may be staring into more than 1,000 m of open ocean.
Species to look out for: Greytip Reef Shark, bigeye trevally, Whitetip Reef Shark, dogtooth tuna, and more.
Coral Sea Liveaboard Dive Site 04 / Admiralty
Located at the entrance to the lagoon at the southern end of Osprey Reef, Admiralty is a popular afternoon and night dive site. A labyrinth of reef formations provides a home for an extraordinary variety of marine life. The reef walls plunge from over 30 m down to depths exceeding 1,000 m. The site gets its name from an ancient marine anchor that rests here — visible when exploring the swim-throughs.
Species to look out for: Greytip Reef Shark, black trevally, Whitetip Reef Shark, manta ray, octopus, Lionfish, moray eel, and more.
Coral Sea Liveaboard Dive Site 05 / False Entrance
This site takes its name from the large crevices in the reef that look like a foreboding entrance. A large U-shaped gully begins in the lagoon area and gradually descends to around 30 m — the structural architecture of this site is truly impressive.
Species to look out for: Greytip Reef Shark, bigeye trevally schools, Whitetip Reef Shark, Maori wrasse, triggerfish, silverside fish, and more.
Coral Sea Liveaboard Dive Site 06 / Around The Bend
This dive truly has it all! It typically begins as a drift dive along a 1,000 m wall, allowing you to drift "around the bend" and back to the mooring line. For more experienced divers, there is an isolated bommie 32 m off the wall that serves as a cleaning station for manta rays, frequently attracting large pelagics. Near the end of the dive, you can explore shallow caves near the mooring line, where a channel makes for an ideal safety stop — and an opportunity to discover countless small creatures.
Species to look out for: Hammerhead Shark, dogtooth tuna, Greytip Reef Shark, soft coral, gorgonian / sea fan, Whitetip Reef Shark, manta ray, and more.
Coral Sea Liveaboard Dive Site 07 / Castles
Running along the western wall between Admiralty and North Horn, this dive is extraordinary for its network of channels weaving between the reef formations. Its fascinating topography and diverse marine life have made it famous among seasoned divers. The area is riddled with caves large and small, and a soaring canyon blanketed with gorgonian / sea fans.
Species to look out for: Queensland Giant Grouper, Whitetip Reef Shark, moray eel, Clownfish, bigeye fish, catfish, goby, and more.
Coral Sea Liveaboard Dive Site 08 / Silver City
This popular dive site is just a few hundred metres from the Castles mooring. The reef wall slopes at 45 degrees, gradually descending to 100 m. You'll find volcano-like bommies and spectacular caves, with regular fissures in the reef allowing you to swim between the lagoon areas and explore at will.
Species to look out for: Bigeye fish, Whitetip Reef Shark, triggerfish, silversides, Greytip Reef Shark, bigeye trevally schools, Maori wrasse, and more.
Coral Sea Liveaboard Dive Site 09 / Secret Caves
Located at the lagoon entrance at the northern end of Osprey Reef, Secret Caves is one of our more frequently visited afternoon and night dive sites during the summer months. It consists of a vertical reef wall and a sloping wall that gradually extends into the shallower lagoon area nearby.
Species to look out for: Greytip Reef Shark, Clownfish, barracuda, Whitetip Reef Shark, manta ray, and various small fish hidden among the coral, and more.
Coral Sea Liveaboard Dive Site 10 / Rapid Horn
Located at the southern tip of Osprey Reef, this site is only accessible during summer when northerly winds prevail. It consists of sheer vertical cliffs dropping to 1,000 m, where divers can drift along the wall and eventually reach the southern apex — a gathering point for dense schools of fish of all sizes.
Species to look out for: Greytip Reef Shark, reef shark, barracuda, bumphead parrotfish, bigeye trevally, scorpionfish, sweetlips, and more.
--- Facing the sea breeze, a salty kind of love ---
Spirit of Freedom departs Cairns every Thursday
bound for our "private" dive sites in the Coral Sea.
But a few days each year,
we want to push a little further, dare a little more.
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The Coral Sea's famous shipwreck draws pilgrims from the diving world over.[/caption]
The SS Yongala — Lost in the Coral Sea
Yes, you can trust your eyes and your instincts — this is the ship that never left the Coral Sea: the SS Yongala.
In 1911, the SS Yongala departed the Queensland town of Mackay bound for Townsville, but five hours into the voyage it vanished from the face of the sea, taking 122 souls with it. It was not until 1958 that its resting place was first confirmed. (For the full story, read: 《Diving Australia's Mysterious Lost Shipwreck in Strong Currents — the S.S. Yongala》)
The SS Yongala wreck is widely recognised as one of the top ten dive sites in the world. The marine life here is extraordinarily abundant, blanketing the hull from bow to stern — and you may also encounter Tiger Shark, Bull Shark, manta ray, and more. However, due to strong currents, this site is only recommended for divers with at least 50 logged dives.
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Spirit of Freedom visiting the SS Yongala wreck in the Coral Sea.[/caption]
In November 2020, Spirit of Freedom will for the first time organise a combined SS Yongala + Coral Sea liveaboard itinerary. Over seven days, participants will explore this century-old shipwreck in a way that only a handful of divers have ever experienced.
In addition to the Yongala, we will also be running a Coral Sea Far East Expedition liveaboard in November of the following year. With a spirit of adventure, we will take you to virtually untouched reef systems for eight days of discovery and exploration.
What awaits us may be the dive site of our dreams — or perhaps nothing at all, except our deep, salty love for the sea.
--- You say you can't let go ---
Who could stay calm coming face to face with a shark?
Who could ever forget the sound of a whale singing?
We know that by now,
you can no longer get the Coral Sea out of your head…
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A Coral Sea liveaboard offers breathtaking natural scenery, from sunrise to sunset.[/caption]
So let me close with some practical information about the Coral Sea liveaboard — dates, itineraries, and everything else you've been wondering about.
Coral Sea Liveaboard: Full Details
Coral Sea Liveaboard — Vessel Overview
At 37 m in length, Spirit of Freedom is a vessel purpose-built for serious diving, equipped with the latest navigation and communications systems, and rated exceptionally high for safety. We gave it a Chinese name — Spirit of Freedom (深海自由號), symbolising every diver's dream of exploring the endless deep ocean in total freedom.
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Spirit of Freedom operates the Coral Sea liveaboard itinerary.[/caption]
Spirit of Freedom accommodates a maximum of 26 passengers and 10 crew members, and features two spacious dive decks to ensure everyone can enter the water quickly and comfortably. Where connectivity allows, unlimited complimentary Wi-Fi is available on board.
When it comes to dining, the ship's chef prepares nutritious, locally inspired Australian cuisine every day to help you recharge and make the most of every moment underwater. Breakfast and lunch are served buffet-style, while dinner is cooked to order — and during dinner, you're welcome to enjoy complimentary drinks at your leisure.
A good night's sleep is just as important as a great dive. Our cabin options include double, twin-share, and quad configurations, all with air conditioning and en-suite bathrooms, with daily cabin service provided. Is there anything better than returning from a day of diving to find your meal already prepared and your bed already made?
If you'd like to take your diving to the next level, Spirit of Freedom also offers Advanced Open Water Diver (PADI cert) and enriched air nitrox (EANx) courses on board.
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Spirit of Freedom not only runs liveaboard itineraries, but also offers certification courses on board.[/caption]
Coral Sea Liveaboard — 5 Days / 4 Nights: Departing Every Thursday
Spirit of Freedom departs Cairns every Monday at noon and returns after eight days at sea. You can choose between the first three nights, the last four nights, or the full seven-night itinerary based on your diving experience — with the four-night and seven-night options both venturing into the Coral Sea.
Starting with a flight to Lizard Island, the Coral Sea liveaboard experience is guaranteed to send adrenaline surging through any seasoned diver. From there, we sail a further 220 km, making two dives along the beautiful Ribbon Reef before heading overnight to the remote Osprey Reef.
Osprey Reef is an ancient volcanic atoll renowned for its crystal-clear waters, with visibility ranging from 30 to 100 m. Here you'll encounter an array of gorgonian / sea fans, sea whips, and brilliantly coloured soft corals that grow upward from the deep, forming coral walls that plunge to over a kilometre. Most of the dive sites described above are located within Osprey Reef.
Weather permitting, before returning to Cairns we will sail south to Bougainville Reef — a site celebrated for its unusual underwater landscapes, cave systems, and sunken shipwreck remains.
This five-day Coral Sea itinerary offers up to 15 dives.
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This article walks you through the different liveaboard duration options available in the Coral Sea.[/caption]
Coral Sea Liveaboard — 8 Days / 7 Nights: Departing Every Monday
This itinerary combines three nights at Cod Hole with four nights in the Coral Sea. Cod Hole is the most popular choice on our Great Barrier Reef expedition itinerary. The journey departs Cairns and heads north for 240 km to the Ribbon Reef, situated on Australia's outer continental shelf.
Here you will encounter the resident potato cod family, rare giant clams, friendly sea turtles, enormous baitball clouds formed by countless tropical fish species, and of course the breathtaking spectacle of soft coral reefs in every form imaginable. During the months of June and July, you may even have the chance to encounter dwarf minke whales!
The itinerary covers classic dive sites including Pixie Pinnacle, Steve's Bommie, Challenger Bay, Two Towers, Lighthouse Bommie, and Snake Pit. Conditions permitting, you may also encounter schools of sharks at Dynamite Pass. And naturally, all of the Coral Sea dive sites mentioned above are included.
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Magnificent coastal scenery[/caption]
Today's introduction has been quite lengthy — because whenever the Coral Sea comes up, none of us can seem to stop talking. Not the crew, not the chef, not the guests, and certainly not me, typing away at my keyboard right now. We want to share our beloved Coral Sea with you, and we hope that when you finally set down your scuba tank and say your goodbyes, you'll find yourself humming: "Turning to leave, the words 'it's over' won't come…"
Further reading:
