What is the procedure for a lost diver during a SCUBA dive?

When a diver is reported as lost during a SCUBA dive, the procedure involves promptly calling for assistance. This is crucial because time is of the essence in a search and rescue situation. Each moment that passes can significantly reduce the chances of locating the diver safely. Communicating the situation to other team members or the surface support team allows for a coordinated response.

This immediate action can help mobilize resources, such as additional divers or surface support, who can more efficiently conduct a search. Preparation and pre-planning for such scenarios are critical in dive operations, underscoring the importance of training and knowledge of emergency procedures.

While searching the immediate area may also seem like a reasonable step, it generally follows the immediate call for assistance, as a larger rescue operation is necessary to ensure a comprehensive search and maximize the chances of finding the diver. Similarly, sending down a marker buoy can be a useful tactic, but it is typically a part of the communication strategy rather than the first response. Waiting until dive time is over would be inappropriate and could risk the safety of the lost diver.