Planning a dive. Safe diving is based on good organization and logistics. Important elements of planning are a dive site conditions, equipment and level of training and experience participants of the group. We will look at this more closely.
Taking and leading group- instructor or divemaster usually discuss conditions such as current, visibility, depth and route. It is worth checking the weather forecast. Diving logistics covers the places of entry and exit, to discuss ways to communicate and guide the characters dive, dive to determine pairs. Securing medical- need oxygen, bandages and medicines drugs, AED and AMBU set and an evacuation plan. It is worth to know who the divers completed a course Rescue or Emergency First Response. The emergency situation need to know the team belay on the shore or boat. We must also secure means of communication-cell phones and walkie-talkies. Establishing pair diving requires checking of experiences (logbook) and certifications. In some countries, checks the validity of the medical opinion and insurance.
Before diving instructor or a guide explain important information such as the maximum depth, dive time and gas consumption. Before or after entering the water you need each other to check the equipment and become familiar with the configuration of diving partner. Deviations from the classical configuration, for example, how is fixed/ placed the octopus, crotch belts in BCD- the best way is immediately show. In the case of an emergency situation underwater important is a each seconds.
And most importantly, recreational diving is partner diving. So-mutual assurance and adjust to the possibility of the weakest group of divers. Often one feels worse, but do not say that. In this situation, you should immediately signal the emergence and need break diving. Love you for it will not be, but it is less severe than the potential impact of a diving accident.