When it comes to the Diving Instructor Course Australia, you may have to leave the place quickly, for example due to an accident; if the anchor is stranded the anchor is loosened and a reference float is fixed to the anchor cable to return to resume later.
Agree clearly and unequivocally on procedures to be followed in case of separation from the group: it is advisable to immediately go back to the surface with a speed of 10m / min and signal the boat to its position. Reduce the depth of the dive.
The characteristics of the seabed
Natural hazards include depth: it is good to know the depths of the area in which the groups dive, in order to indicate them to the dive leaders. Information can be obtained through. Apart from the case of particularly expert elements, it is prudent to avoid sending divers to areas where they can easily exceed the established depth limits.
These are the choices to avoid: do exercises on a terrace at a depth of 5 m overlooking a fall at 20 or 30 m, send a group to see a wall at 30-40 m if the wall goes down to 50-60 m. It is not to consider that in some seas the depth can vary even by many meters with the tide and with the lunar cycles. Nature of the fund: avoid immersing beginners on a seabed that could create further anxiety: on the sand or on the mud that is immediately raised by an incorrect finning, with very high algae (typical of the ocean) and near nets or trammel nets.
Caves: should be avoided for beginners and addressed only with divers whose skills are assessed very positively. The depth of the entrance, the size of the rooms, the length and, above all, the fact that an exit must always remain in view must certainly be taken into consideration. It is generally more prudent to prohibit entry into any cave that is unknown to any dive boss. It is better to plan a visit to a cave using the advice and, above all, the guide of underwater guides already knowledgeable of that cave.
Wrecks: the recommendations made for the caves are valid with the additional recommendation to pay attention to sharp edges or sharp sheets. In addition, the bubbles expired by the diver can cause the collapse of some parts in wrecks that have long been subject to the corrosive action of the sea as shown by the Diving Instructor Course Australia.
Nets or trammelts: do not allow immersion near floats indicating the presence of nets or trammel nets. If unfortunately a sub should get caught in a net, it is essential to act with great calm and slowness progressively freeing the parts stuck in the net (taps, dangling whips, buckles, snorkels, etc.).
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