What is the proper hand gesture used to signal that a diver is 'okay' during a dive?

The proper hand gesture used to signal that a diver is 'okay' during a dive involves connecting the thumb and forefinger to form a circle, often referred to as the "OK" sign. This gesture is universally recognized among divers as a clear and straightforward way to communicate that everything is fine and functioning normally underwater.

Using this signal helps ensure safety and effective communication between divers, as it can be difficult to hear each other due to the noise of the water and gear. The gesture is easily identifiable and can be quickly performed even in challenging conditions. Understanding and using this signal is an essential part of diver training and helps maintain safety while diving.