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Impossibly Beautiful Sea Life of Sydney Harbour – Part 1

In case you’ve been living under a rock in the harbour, you will know that Sydney offers some amazing snorkelling and scuba diving opportunities. It’s a really clean body of water. The proof is in the snorkelling too. A recent study revealed that Sydney harbour has more marine species than any other harbour in the world. With approximately 600 marine species found here in March 2013; compared to 530 marine species living in the Mediterranean at the same time. If you would like some inspiration to don a wetsuit and flippers, here are some of the most vividly beautiful Sydney residents, who have without a doubt, the best post code in Sydney.

Weedy Seadragons

These ethereal and floaty creatures look like bright purple, blue and yellow pieces of seaweed. Growing up to about 45 cm in length, they have a delicate leaf arrangement and seem to float and careen through the water. In this way weedy seadragons have fantastic camouflage and can be overlooked by divers, until you develop an eagle eye and can see them.

They have a weird mating ritual. Although nothing that you wouldn’t expect to find on any Saturday night at a pub in The Rocks! The female pushes the eggs onto the males tail and once there, they get fertilised. On average 120 to 300 eggs are carried. After about 2 months the eggs hatch and the babies are quite large, around 2-3 cm in length. They grow quickly to become around 7 cm after 14 weeks.

Mainly weedy seadragons eat sea lice and small crustaceans that they suck in through their elegant long snouts. Weedy seadragons are protected under fisheries legislation and it’s illegal to export them, eat them or sell them.

These little wee cuties should always be left alone in the harbour. They are endangered by fishing and the illegal aquarium trade. Be satisfied with taking underwater pictures and don’t harass them.

Blue Groper

This is the largest and most spectacular fish found in Sydney harbour. Any local who has done snorkelling in the area would think fondly and warmly of this sapphire blue beauty. Although named a groper, this blue behemoth belongs to the Wrasses family, and can grow up to 1m in length.

You will find it moseying through reefs, up to 40m in depth. The blue groper is found all around the east coast, from Wilson’s Promontory in Victoria to Hervey Bay in Queensland. If you make a racket and bang some rocks together in the reef, he will let curiosity get the better of him and come closer to you.

Sometimes a female changes into a male during its lifetime. The whole sex change thing is attributed to the size and age of a blue groper, this triggers the change. Also it’s thought to be a balancing element in the population. When there are too many females, some of them change into males to bolster species growth.

Blue gropers love to eat sea urchins and small crustaceans. Although please don’t kill sea urchins in order to feed the blue gropers, as they have their own place in the ecosystem as well. Blue gropers also like boiled eggs and beach worms, so try giving them these instead.

They can grow to an enormous size, up to a metre long and can live up to 35 years old. Although they were fair game in the past, and are reputedly very tasty, blue groper have been protected since 1969. It’s now illegal to fish them and fines apply.

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The MV Cosmos by Choice Charters

This is one of Choice Charters most sumptuous vessels. It’s perfect for a romantic getaway and is fully equipped with state-of-the-art entertainment, presentation and sound systems. There are stately cabins aboard that are reminiscent of a luxury hotel. You can bring along up to eight guests for your snorkelling trip, with a spacious foredeck an swimming platform, along with a swimming platform on the stern. The MV Cosmos is perfect for a snorkelling trip at one of the many amazing snorkelling and diving areas in Sydney Harbour.

The MV Santa Cruz by Choice Charters

Another option is the MV Santa Cruz from Choice Charters. This is a bare boat which means that you can ‘choose your own adventure’ and take along your own refreshments and entertainment for a great day or weekend of fishing, snorkelling and exploration of Sydney’s secluded coves.

Stay tuned for Part 2 of Impossibly Beautiful Sea Life of Sydney Harbour.

Choice Charters will keep you on the pulse and inspired by this amazing body of water right on your doorstep…


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