Most sportdivers dive at tried and true sites. Often these site were first dived other than for simple enjoyment of diving. For example, spearfishing opened many sites on Australia’s Great Barrier Reef.
Around a diver’s local area there may be sites that haven't been discovered. A dive around a jetty can be a rewarding experience: there may be lost sinkers to make into dive weights. Many new sites may be disappointing, but there is something exciting about a dive site that has seen few, if any, divers.
Before The Dive
Before exploring new sites, extra preparations are required. There are all the usual safety aspects like having equipment in good condition, always diving with a buddy. And don't forget a knife. Diving around a jetty frequented by fishermen means a lot of tangled fishing line underwater.
Currents and Tides
Careful consideration must be given to currents and tides. Not only for safety but also visibility. The best time is usually just before the high tide. Depending on the location the tidal run will slow before turning.
Local knowledge is always handy. This may be the local dive shop or a couple of fishermen at the site. They might be able to warn of strange currents, visibility problems or advise the best entry and exit points.
Exploration Diving at River Mouths
If it is a dangerous location, like the mouth of a large, fast-flowing river, watch the site for a few days to get the feel of the currents and tides. Maybe even snorkel over the site first. Remember that the currents on the surface might not reflect what is happening to the water movement underneath.
Some river mouths have been diverted or stabilised with the use of rock walls or groynes. These can be interesting dive sites with many small crevices formed between the boulders. Care must be exercised when diving around these as they could move unexpectedly.
Many headlands offer good dive sites. Have a look at the rock formations around the area prior to diving as this will give a rough indication of the seascape.
Exploration Diving at a Beach
Out from a lot of beaches there may be small reefs worth exploring. Colour changes in the water, when viewed from a nearby headland, might indicate a reef. If there is any doubt about depths, head out over the site on a board or surf ski and take a depth reading with a weighted rope. The presence of any boating traffic also needs to be considered.
Pick a time when the surf is small. A compass should be used to find the reef and a marker should be placed when reaching the reef as a reference to start the swim back. If the reef shows promise it may provide many more exploration dives.
In this sort of diving it is a temptation to come to the surface occasionally to check physical bearings. This should be avoided, unless in an emergency. Learn how to use a compass and rely on it.
Safety First
Always advise someone of the dive arrangements. If it is a dangerous spot, have someone remain on the surface to keep watch. The dive flag should always be flown.
Exploring new sites is a simple and safe process if the necessary precautions are followed. Finding a new site and not knowing what to expect can add that little bit extra interest and challenge to a sportdiving career.
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