Dive Communication: Crucial Hand Signals Below the Surface

Hand signals are a crucial component of diving. When applied properly, they can guarantee that your friend receives your message and can react accordingly. During their scuba training, all new divers learn the fundamentals of diving hand signals. To build muscle memory, practise these both on dry ground and during your upcoming dive.

1. I'm alright

To make this hand gesture, spread the other three fingers apart and place one index finger in a circle. This is frequently used to signal to a diver that they should take a moment to gather their thoughts, recall anything, or clear their mind before leaving the present dive location. One of the simplest hand signals used in scuba diving is this one. It's utilised to reassure a friend that you're alright and that you comprehend a query they've asked. When on the surface, it can also be used to signal that you're prepared to begin your descent. In order to demonstrate that you are prepared for your safety stop, which is typically a three-minute stop, this can also be employed at depth. Additionally, it serves as a crucial warning when you are about to run out of air. Thumbs pointing down are used to express this. A "problem" hand gesture can be used to follow the signal to denote the need for equalisation.

2. I Want Assistance

A handy approach to draw your diving buddy's attention and let them know anything is off is to give them the "something's wrong" hand signal. To make the signal, extend your flat hand in front of you and jiggle it. The diver needs to return to the surface or begin sharing their air, as this is a very significant warning. Although it's preferable to avoid reaching this stage altogether, it's a good idea to occasionally check in with your companion to see how much oxygen they have left so you can change directions or shallow the dive before they run out. The underwater hand signal indicating pausing or ceasing all activities for any reason is this one. All divers should be proficient in this vital ability, particularly in a setting like a cenote where abrupt stops can aid with safety concerns or navigation. In order for the group to surface together at the conclusion of a dive, it's also a wonderful signal to utilise during your safety stop.

3. Risk Pointing That Way

It's crucial to communicate with your dive partner for a variety of reasons. One benefit is that you may communicate any possible underwater hazards to your friend so they can take the necessary precautions to avoid them. Additionally, it enables you to express any concerns that can jeopardise your security or comfort, including difficulty equalising or coldness. Just point to the area of concern and use the same hand gesture you would on land to indicate that danger is there in that direction. It's an obvious, uncomplicated signal that has the power to save lives! Give the thumbs up with your hand and point up towards the water to indicate that you're ready to surface. Groups of divers frequently use this to indicate that they are prepared to ascend to the surface together. This is a great substitute for a whistle, which can be challenging to hear underwater.

4. Swelling

When you are underwater, it is crucial to know how to speak using bubbles. For example, in order to keep the other divers on your dive safe and informed, you should notify them if you encounter a shark, even though they are typically harmless. A simple hand signal that is widely used is the "OK" sign, which is created by extending your arm while holding a closed fist. Cupping your hands together to signal that you are done diving and want to come back to the surface is another effective approach to communicate. Lastly, a diver might indicate that they need to ascend by pointing a finger at their head. This is a terrific technique for your friend to be able to ask for help when needed without expending too much oxygen. To avoid confusion, it's crucial to decide on the signals you will use in advance while diving with a large group of people.