What communication method is advised if a diver feels distress underwater?

When a diver experiences distress underwater, using silent communication methods, particularly hand signals, is emphasized as the most effective approach. Underwater environments limit visibility and sound carries poorly, making it nearly impossible for a diver to shout or be heard. Hand signals, on the other hand, allow for clear and immediate communication with a dive buddy or group without adding to the distressing situation. This method ensures that both the distressed diver and the dive buddy can remain focused on safety and problem resolution.

Furthermore, effective communication is critical in underwater situations to prevent panic and facilitate timely assistance. Keeping to oneself or swimming away from a dive buddy can exacerbate the situation, as isolation may inhibit a diver's ability to get help and can create further dangers. Therefore, employing hand signals fosters teamwork, allows for better monitoring of each other's safety, and reflects the importance of staying connected during potential emergencies.