The "Down" Hand Signal
The "Thumbs-Down" hand signal communicates "go down" or "descend" underwater. This signal should not be confused with the "not-okay" hand signal used to indicate a problem. The "Down" signal is used in the first step of the Five Point Descent, in which divers agree that they are prepared to begin the descent.
20 Common Hand Signals for Scuba Diving
By Natalie Gibb, About.com Guide
"Down"
The "Thumbs-Down" Signal in scuba diving communicates "descend".
Natalie L Gibb
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- "Okay!"
- "Not Okay" or "Problem"
- "Okay" and "Problem" Scuba Diving Signals on the Surface
- "Up" or "End the Dive"
- "Down"
- "Slow Down"
- "Stop"
- "Look at . . ."
- "Go in This Direction"
- "Come Here"
- "Level Off"
- "Buddy Up" or "Stay Together"
- "Safety Stop"
- "Deco" or "Decompression"
- "Low-On-Air"
- "Out-Of-Air"
- "I'm Cold"
- "Bubbles" or "Leak"
- "Question"
- "Write It Down"
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