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Spearfishing Boots and Socks
You wouldn't go out running without wearing socks under your sneakers. Similarly, you shouldn't go diving without dive socks!
Dive socks are a must for all spearfishers and serve a range of purposes such as preventing blisters, keeping your feet warm and ensuring that you get a perfect fit from your spearfishing fins.
Dive socks are generally 2 or 3 mm and shouldn't take up much room in your foot pocket, so your size shouldn't change - just like it wouldn't if you were wearing socks with a pair of shoes!
The Scuba Doctor also stocks a range of dive boots. Dive booties will not fit as well under typical closed heel, freediving fins but are useful because of the grip and protection that they provide when you are on a boat or walking on rocks and reef.
Marine Flag Signals
These are the marine flags signals you should know about.
Diving Operations Flag
Victorian law requires that any vessel with divers operating from it must always display signals by day and night to inform other vessel users.
The daytime signal for divers is an International Code Flag 'A' of size 6 being at least 750mm long and 600mm wide. It should be placed to ensure all-round visibility.
Divers operating without a vessel, for example from a jetty, should also display the International code flag "A". The flag should be at least 750mm long and 600mm wide. The flag may be displayed from a buoy. If displayed from a buoy, the flag must not be less than 300 mm in length and 200 mm in width. The flag must be clearly visible to all vessels operating in the vicinity.
Diving Operations Lights
During night diving, a vessel must show the international signal for a 'vessel restricted in its ability to manoeuvre'. These are three lights in a vertical line, top and bottom are red and the middle one is white. The diver's boat should also show other appropriate lights such as an anchor light.
People involved in night diving without a vessel should display a yellow (orange) flashing light that can be seen from a minimum distance of 200 metres.
Speed Restriction
In Victoria, Australia, a five knot (9.25 kph) speed limit applies to vessel operators and waterskiers within a distance of 100 metres (330 feet) of a vessel or buoy on which a diver below signal is displayed.
International Code Flags
Other than the alpha flag, these are rarely seen by divers, however they may be useful to know.
The International Code Signal of Distress is indicated by the Code Flag "N" flying above the Code Flag "C".
![Halcyon Infinity 30lb System [SS Small Backplate]](/diveshop/images/halcyon/Halcyon-Evolve-Wing.jpg "Halcyon Infinity 30lb System [SS Small Backplate]")
