The "Write It Down" Hand Signal
When all other communication fails, divers sometimes find it easiest to simply write down the information to be communicated on an underwater slate or wet-notes underwater notebook. A writing device is a valuable tool underwater, and can save time and increase diver safety by allowing a diver to express complex ideas or problems. The "Write It Down" signal is made by pantomiming that one hand is a writing surface and the other hand is writing with a pencil.
Now you know twenty of the most common scuba diving hand signals. Of course, many more scuba diving hand signals exist! Review hand signals with your dive buddy before every dive to avoid communication problems underwater.
