Demoiselles (Chromis dispilus) congregate at 36 metres, the highest point of The Thirty Six.
Grey sponges (Ancorina sp.), orange soft corals (Alcyonium aurantiacum) and other encrusting organisms blanket the top of the pinnacle.
The visibility of 10 or so metres on this dive was a little disappointing and is reflected in the greenish hue of the water.
This black coral tree (Antipathes sp.) at 45 metres is the shallowest of several such colonies which branch out from the near vertical walls of the pinnacle. Magenta jewel anemones (Corynactis sp.) encrust some of the dead branches.Other coral tress at greater depth are in better health than this one.
On this dive I dropped down the southern face of the pinnacle which has a sheer wall to 62 metres followed by a jumble of rocks leading to the sandy bottom at 66 metres. I saw no coral trees on this side of the pinnacle. The trees seem most abundant on the western face.
Others swam through a small arch at about 50 metres.
Demoiselles and Jason mirabilis nudibranchs at 38 metres. The diagonal line in the background leads up to Taranui on the surface above.
30 March 2008In beautiful blue water I drop straight down beside the arch and bottom out at 65 metres on its southern side. Several large black coral trees branch out from the walls of the arch. The tree in the photograph above is perhaps the deepest at about 60 metres. The bridge forming the top of the arch can be clearly seen and is only a few metres high.
These ancient trees may have been partially protected from boat anchors and fishermens lines by being under the arch. A large dead coral tree with a 30 mm diameter trunk sadly lay on the sandy bottom beneath the arch.
A slightly shallower black coral tree at 56 metres.Breathing 18/45 trimix I take all this in with a clear head. Others on this dive breathing air are ravaged by nitrogen narcosis and fail to notice that they're beneath an arch.
Divers decompressing beneath Taranui
7 December 2008
We had great conditions for my third dive on the Thirty Six. Viz in the shallow water wasn't great at about 10 to 12 metres but it opened up beautifully from about 30 metres down to a lovely 20 to 25 metres. The clearer water at depth was noticeably cooler at about 15.1 degrees and up to 18.4 degrees in the shallows. Pictured above is Glen W in the arch at 64 metres.
The biggest and best coral tree in the arch at 60 metres depth.
Glen W with coral tree at 53 metres.
Jason mirabilis nudibranchs feasting on a Solanderia hydriod tree at 38 metres, close to the top of the pinnacle.
29 March 2009
On a beautiful late summers day we returned again to The Thirty Six.
Neil yelled out "there's a good sized shark right under the boat" but it had disappeared by the time I got in. Visibility in the shallow water look promising but unlike our previous visit, it did not improve at depth and if anything, was a little worse. We still had a pleasant 12 to 15 metres of visibility with 18 degree water on the bottom and 20 degrees in the shallows.
Above, Glen W. and I swim down to the sand just outside the arch at 65 metres depth. Lurking beside this rock I spotted a foxfish (Bodianus sp.) which I've only seen before at the Poor Knights.
GPS Coordinates: 37°00.643’ S 176°03.306’ E
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