Green Lake, Tragoess, Austria: The park that disappears under

Underwater Park Australia

Park / September 18, 2017

Don’t miss the World Heritage-listed Great Barrier Reef, a living masterpiece so big it can be seen from space. It stretches almost 1, 243 miles (2, 000 kilometres) along the Queensland coast, from Cape York to Bundaberg. Discover the diving havens of Heron and Lizard Islands. Or stay in the Whitsundays and take a sea-plane to spectacular Heart Reef. Base yourself in Cairns or Port Douglas and visit the reef gardens of Green and Fitzroy Islands. Travel further to Agincourt Reef, on the edge of the continental shelf. Kick through coral canyons filled with turtles, sea stars and crabs at Lady Musgrave Island and Fitzroy Lagoon near Gladstone. Explore the SS Yongala shipwreck from Townsville and the Llewellyn shipwreck from Mackay.

2. Ningaloo, Western Australia

Join the tropical-coloured party at Ningaloo Marine Park, the world’s largest fringing reef. Its home to 200 species of hard coral, 50 soft coral and over 500 species of fish. Snorkel or shallow dive with brightly adorned fish in the Bundegi Bombies reef sanctuary. Get up close to sci-fi sponges, gorgonians and sea whips at the entrance to the Exmouth Gulf. Mingle with turtles, manta rays, dolphins, dugongs, batfish, angelfish and clownfish, among others, at Lighthouse Bay. Discover spectacular reef diving and a glamorous underwater crowd at the Murion Islands. Between April and June you can even hang out with the whale shark, the world’s largest fish.

3. Mornington Peninsula, Victoria

Dive with sting rays, seahorses, cuttlefish, squid, urchins, rock cod and weedy sea dragons in Port Phillip Heads Marine Park. This magical marine world sits off the Mornington Peninsula, just an hour’s drive from Melbourne. Marvel at the abundance of fish, birds and seals in the tiny sanctuary of Popes Eye. Swim with dolphins at Sorrento. Drop from 8.7 to 19.6 yards (8 to 18 metres), past the underwater cliffs, ledges and caves of Kelp Beds Reef. Or go even deeper at Port Phillip Heads, which offers wall dives, drop-offs and submerged World War I submarines. Learn to dive at Portsea Pier and discover a dreamcoat diversity of fish on the trail around Rye Pier.

4. East Coast Dive Trail, Tasmania

Hop between 11 spectacular diving spots along Tasmania’s east coast, from Binalong Bay to the Tasman Peninsula. The clear, turquoise water has visibility between 11 to 44 yards (10 to 40 metres). See big-bellied seahorses and weedy seadragons on a shore dive in Waubs Bay, near Bicheno. Glide past jewelled anemones and schools of butterfly perch in Governor Island Marine Nature Reserve. Swim through the enchanting caves of Isle de Phoque, also home to a large seal colony. Dive the scuttled Troy D near Maria Island or off the boat into the large reefs and caves of Waterfall Bay. Kick through the Fortescue Bay Kelp Forest or around the SS Nord, which in 1915 sank 44 yards (40 metres) deep.

5. Baird Bay, South Australia

Swim, snorkel or dive with playful sea-lions and bottlenosed dolphins in tranquil Baird Bay on the Eyre Peninsula. This fishing village has become famous for the colony of endangered sea-lions that live in a sheltered lagoon offshore. Watch parents and pups somersault through the clear water, just a whisker away. Stare into their soulful, brown eyes and let them nudge you and invite you to play. Dive in deeper water with pods of fun-loving, but more elusive dolphins. In nearby Port Lincoln, you can swim with cuttlefish and tuna and even cage dive with great white sharks.

6. Darwin Harbour, Northern Territory

Dive World War II wrecks and a coastal reef teeming with fish in balmy Darwin Harbour. Approximately every second week, the tidal currents let you discover these underwater secrets. Swim through moss-covered hulks of ships, sunk in 1942 air raids, and now home to coral trout, wobbegong sharks, jewfish and barracuda. See gorgonians, soft coral trees, harp corals, vase sponges and ascidians in the shallow reefs lining either side of the harbour. Experience one of Darwin’s famous flamingo sunsets before a night dive in the warm, glass-smooth seas. You’ll spot slate pencil urchins and the occasional octopus in the naturally illuminated water.