Hand signals
What every underwater signal means.
OK / Are you OK?
Thumb and forefinger form a circle, other fingers up.
Problem
Flat hand rocking from side to side.
Go up / End the dive
Thumb pointing up.
Go down / Descend
Thumb pointing down.
Stop / Hold
Flat palm raised, like a traffic officer.
Look
Two fingers point at your eyes, then at the object.
Low on air
Closed fist pressed to the chest.
Out of air
Flat hand slicing across the throat.
Share air
Flat hand moved repeatedly to the mouth.
Safety stop
Flat hand held level, then three fingers up.
Slow down
Flat palm pressed gently downward.
Come here
Index finger beckons towards you.
Stay together / Buddy up
Two index fingers side by side.
I am cold
Arms crossed over the chest, rubbing the upper arms.
Cramp
Fist clenched and pointed to the affected leg.
Ear problem
Point to the ear, then show the problem sign.
Level off
Flat hand, palm down, held steady.
How much air?
Point to the pressure gauge, then make a fist (or show your own gauge).
Turn the dive
Index finger makes a circle or U-turn.
Go that way
Point in the direction.
Danger
Clenched fist raised high.
Shark
Flat hand held upright on the forehead like a fin.
Boat above
Hand flat and raised, fingers together, like a boat hull.
Night: light signals
Slow circle with the torch = OK; fast side-to-side = problem.
Photo / Take my picture
Hands form a rectangle like a frame.