How to Use an Underwater Compass

Step-by-Step Guide

1. 1

   Step 1: Still on the boat

   Now you've set the compass.
   
   Take care to not turn the bezel again or you will lose your setting, unless you are swimming a pattern with calculated angles at predefined turning points (after having covered a measured distance). , The lubber line now points to your destination or will be parallel to the original coastline where you entered the water.
2. 2

   Step 2: put the lubber line (the fixed red line) in the direction of your destination or parallel to the coastline where you enter the water (in case it's needed only as a general orientation).

3. 3

   Step 3: While holding the lubber line (actually the whole compass) in it's original position

4. 4

   Step 4: turn the bezel (the mobile ring with the degrees on them) with the 0° (normally marked) on the North.

5. 5

   Step 5: You can now find the original position underwater by turning the whole compass (attached to your arm or in a console) until the North is on 0° again.

Detailed Guide

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