MELBOURNE MUCK

Melbourne divers have a secret. They have been harbouring one of the best muck diving sites in the world and not letting anyone else know about it. Well I am going to spill the beans, so to speak, as at Blairgowrie Pier you will see unique and endemic Aussie critters as you explore this amazing Melbourne muck site.
   
I last dived Melbourne in the early 1990s, at the time finding the diving to be varied and surprising, you just never knew what you would see. I especially enjoyed the shore dives under the many piers in Port Phillip Bay . But since then I haven’t had a chance to return to Melbourne , too many other places to explore. Text Box:
    However, over the last few years I started to hear rumours of a new dive site in Port Phillip Bay that was producing regular encounters with some amazing critters. The site was called Blairgowrie Pier, but I had never heard of this pier before and wondered why I didn’t dive it last time I was in Melbourne . I contacted one of my old dive buddies, David Bryant, the founder of Southern Waters Australian Marine Photographers (SWAMP) a local group of very keen underwater photographers, who told me that the pier was part of a marina development that was built in the late 1990s. He also informed me that it was his favourite local dive site and always offered an amazing assortment of southern marine life.
    In early 2009 I was able to get down to Melbourne for a month for work, so took the opportunity to checkout Blairgowrie Pier. Unfortunately, David was not available to shown me the site, but other underwater photographers from SWAMP were on hand to look after me and expose me to one of the best muck diving sites in Australia.
    Blairgowrie Pier is located on the Mornington Peninsula , about one and half hours drive south of Melbourne city. It is situated halfway between two well-known piers that I had previously dived, Portsea and Rye .
    My first dive at Blairgowrie Pier, with Margaret and Theo, was superb, even though conditions were less than perfect; it was cold, wet and windy. But I will describe the second dive I did at the pier, as it was unforgettable.
    On this second dive at Blairgowrie Pier, Margaret, AJ and Michael joined me. After gearing up at the car park, that is perched above the site, it was a short walk down a set of stairs and onto the pier. It was a lovely warm March day and the water looked clear and very inviting as we strolled along the pier, we could even see large spider crabs on the sand below. We proceeded to a lower boat-landing platform, where there are several ladders that allow an easy exit from the water. A quick buddy check and we dropped into the water, ready to explore this southern wonderland.
    The first thing that impressed me about Blairgowrie Pier were the pylons, each one is completely covered in sponges, ascidians, kelp, algae, scallops and tube worms – the colours just incredible. With 10m visibility I would have loved to get some wide-angle shots of these colourful pylons, but I had a macro lens on my camera as I was after critters.
    I settled on the sand
Text Box:  y bottom, only 3m deep here, and started to search the first pylon for subjects, within seconds spotting a lovely big-bellied seahorse clinging to a sponge. Big-bellied seahorses are very common at Blairgowrie over the warmer months, and I found a dozen without really searching for them. After a few photos of this wonderful seahorse I then moved on to photograph a short-tailed ceratosoma nudibranch that was crawling over the sand.
    I then focused on a few of the sea stars, southern sea stars and magnificent sea stars; both these species of biscuit stars are seen in large numbers on every pylon and also on the sand. These sea stars come in a range of colours and I could easily have shot several hundred images trying to capture every colour variation. Also very common were eleven-arm sea stars, these large sea stars were everywhere.
    I then found two more seahorses to photograph, but quickly forget them when I saw that AJ had found a small southern keeled octopus. This cute octopus is endemic to southern Australia and generally only seen at night, so I was excited to see and photograph this species as it slowly ambled across the bottom. With the octopus finding a new spot to shelter from the light I moved back under the pier.
    The fish community that lives around the pier is quite impressive. Reef fish dart around the pylons, including species of leatherjackets, wrasse, triple fins, blennies, scorpionfish and globefish. On the sand were also flatheads and goatfish, and as we moved from pylon to pylon we also encountered schools of yellowtail, silver trevally and even a kingfish.
    A rare endemic fish I was hoping to see at Blairgowrie Pier was the tasselled anglerfish, one of the most spectacular members of this amazing fish family. The only problem is that this fish is so well camouflaged that you could swim past a dozen and not see them. Well it must have been my lucky day as only ten minutes into the dive I stumbled across a wonderful tasselled anglerfish.
    Looking just like the growth around it, the only thing that gave it away was its eye. This fish was 15cm long and one of the most bizarre fish I have ever seen. I shot dozens of images and just spent some time just watching it.
    Continuing along, more seahorses, crabs, shrimps, reef fish and especially nudibranchs. I saw several dozen nudibranchs, representing several different species and the guys from SWAMP informed me that it was the best place in Melbourne to see nudibranchs.
    While most of the life is on and around the pylons, I would occasionally head over the sand beside the pier, which lead me to find several dragonets and a pipefish, which looked more like a stick than a fish.
    One of the most common species on the pylons are rock pool shrimps. Now I am use to shrimps being camera shy, but these little fellows would come out to investigate you. At one point I tapped my finger on a sponge in front of a shrimp and it came over to gently nip my finger.
    After an hour underwater we had only travelled 60m, but reached the T shaped section of the pier. The section of pier to the right is only 10m long, so turning left gave us another 100m of pier to explore in 6m of water. This was a good choice as I quickly found several more seahorses, a spotted stingaree covered in a thin layer of sand and a large spider crab. These spider crabs are fun to watch as they slowly walk across the bottom on tippee-toes with their claws held high or wide. They look like some alien robot from ‘War of the Worlds’.
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    The pylons here seem to be home to lots of fish, including some colourful splendid perch, pygmy leatherjackets and numerous globefish. But I was delighted to find several juvenile Shaw’s cowfish. These are one of the cutest fish in the southern waters of Australia and I managed to get a few photos as they flittered between the sponges.
    Another spotted stingaree got my attention and as I got closer to this small ray I noticed a tiny southern blue-ringed octopus moving across some shell rubble. I shot several images of this highly venomous octopus as it strolled over the bottom, at one point crossing over the stingaree.
    After another twenty minutes we
Text Box:  still hadn’t reached the end of the pier, but with 80 bar left in the tank it was the designated turn around point. It took another twenty minutes to return to the exit point, stopping along the way to photograph and observe the countless critters that reside under this amazing pier.
    Speaking to the SWAMP guys after this incredible dive, they casually informed me it was just another average dive at Blairgowrie Pier.  They then informed me of the other species that have regularly seen under the pier, the list included huge smooth stingrays, southern fiddler rays, angel sharks, dumpling squid, cuttlefish, giant Maori octopus and many other unique southern Australian critters. Before returning home to Brisbane the SWAMP guys organised a special midweek dusk/night dive at Blairgowrie so I could get in one last dive at this wonderful pier.
    We jumped in just as the sun was setting and I settled on the bottom to find two beady eyes and a jagged grin staring back at me from the sand, the unmistakable face of an eastern stargazer. I hadn’t seen a stargazer in years, so gently dug it out of the sand for a closer look. This incredible fish was 60cm long and all muscle, in a flash, with a few quick shuffles; it had reburied itself into the sand to await unsuspecting prey. With a strong cross current the SWAMP team cut their dive short, which I was unaware of, but with so much to see I put up with the current and stayed a little longer to again see all the amazing critters that reside under this pier.
    Each dive I did at Blairgowrie Pier I experienced this cross current, and the SWAMP divers informed me that there is nearly always a current, but it varies in strength. I think this is one of the secrets to the riches at Blairgowrie; this current brings food and nutrients to the thriving marine life that lives under the pier.
    Blairgowrie Pier is an active marina and popular fishing spot, so divers should be mindful of this and respect the other users of the pier. I dived the pier in March, which is one of the best times of the year to dive in Port Phillip Bay , as the water is 18C degrees and the critters seem to reach peak numbers over the summer months. Over winter the water temperature in Port Phillip Bay can drop to 8C degrees, so a 7mm semi-dry or dry suit is best for winter diving. I enjoyed 6m to 10m visibility under the pier, which is about average and more that enough to observe and photograph the marine life at Blairgowrie Pier.
    Of course there is more to Melbourne diving than just Blairgowrie Pier. There are other brilliant shore diving sites in the bay and the ocean beaches are spectacular to dive when conditions are calm. Boat diving this area will expose you to some of the richest temperate reefs in the world, which are packed with sponges and fish life. And for the wreck diver Melbourne has some of the best wrecks in Australia , including several submarines that were scuttled outside Port Phillip Bay .
    After three dives at Blairgowrie Pier I had seen and captured images of many unique Aussie critters, and I hadn’t even explored the entire pier! I know it will not be long before I head south again to explore this Melbourne muck site, as it is one the best dive sites in Australia, and not a secret anymore.

Article appeared in Sportdiving No.135 Aug/Sep 2009