The dive site: it must still be possible to visually check the bubbles of the divers and possibly take an injured diver. Attention should be paid to this last point, given that in some cases the state of the sea, which could allow a diver in optimal conditions to go back on board, could instead make the recovery of an injured sub very difficult, with consequent losses of time and precious energy in this situation.
You must not hesitate to change the place of the dive or even cancel its implementation if the weather and sea conditions do not guarantee satisfactory safety as shown when Becoming a Scuba Instructor. A good knowledge of the type of coast allows you to avoid some places (high cliffs beaten by waves, current areas, etc.) in favor of more suitable ones (coves, inlets sheltered from wind and waves, etc.).
