What should be done in the event of a lost diver situation?

In the event of a lost diver situation, immediate search and report is the appropriate action to take. This approach is critical because time is of the essence when a diver is unaccounted for; the sooner a search is initiated, the higher the chances of a successful recovery. The first step should include notifying the dive team and command about the situation so that resources can be mobilized quickly.

Additionally, a systematic search plan should be put in place, which involves all available divers coordinating their efforts to locate the missing diver. This can encompass surface searches, bottom searches, and possibly using equipment to help in locating the diver. Proper communication is vital to ensure everyone understands their roles and the search area, improving the chances of a swift resolution.

Waiting for the diver to return, continuing the dive, or notifying command only after surfacing are all ineffective in critical situations where immediate action can make a difference in the outcome. Immediate reporting and search efforts are indispensable for ensuring the safety of all divers involved.