What is essential to maintain when searching for a lost dive buddy?

Maintaining calmness while conducting a search for a lost dive buddy is essential because it allows for clear thinking and better decision-making. In a high-stress situation, remaining calm helps divers focus on a systematic search pattern rather than panicking, which can lead to poor judgment or hasty actions. A calm demeanor can also assist in keeping track of time underwater and monitoring air supply, ensuring that the diver's safety is not compromised while seeking their buddy. This focused approach increases the likelihood of a successful search, as divers can think strategically about the areas to cover and the methods to employ during the search process.