418 Dive Log Australasia JUNE 2026.pdf

Grey Reef sharks came in to feed on it. Needless to say, this dive had some serious fun moments. Sharks do not take long to feed in your torchlight. When you shine your light onto a fish, sharks, Giant Trevally and large Cod will come in and gulp them down. To photograph them, get near the bait, step up the ISO to 800 ISO and As a rule, the mantra of get closer applies even more at night. Most subjects will be smaller subjects and even macro subjects. A bright focus light is obviously essential. The best combination is a couple of lights, one bright and another weaker. Many torches have a red filter, which is supposedly less threatening that a brilliant light which scares away the subjects. It works! At night, there are a few hazards. As usual, perfect buoyancy control is mandatory. If you are doing black water diving, it is close to impossible to control your depth as that larval fish rises from ten metres to five and back down to twelve metres. That is why a tether (shot line) is a good idea to try to hold you at a fixed depth. Other hazards include Spiny Urchins and Electric widen the strobes. Camera Setttings

Numbrays. In shallow water, you might see a school of Razorfish dancing within the spines of a Diadem Urchin. This is when you need to swim with feet elevated above your head. Diadem urchin spines are extremely sharp and toxic. Sydney has Electric Numbrays that can generate enough voltage to make you lose control of your breathing or worse still both of your most basic bodily functions. That is why you never use your hand on the sand to steady yourself. Numbrays

Occasionally you will be rewarded with a special moment . Rabaul harbour from the famous Alan Raabe’s live aboard Febrina.

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Dive Log Australasia #418 JUNE ’26

www.divelog.net.au