Most divers learn to follow a guide, a reef, or a line. Navigation is the skill that lets you choose where to go and end up there. It is less about gadgets than about a few habits you can practice on every dive.
Look at the whole site before you descend
Spend a minute at the surface. Note where the sun is, which way the current runs, and where the shore and the boat sit relative to each other. Those references still help you after the water gets cloudy.
Set a heading and trust it
Hold your compass level, line up the lubber line with your body, and swim toward a landmark on your heading rather than staring at the dial. To return, add or subtract 180 degrees to get your reciprocal heading.
Count your kick cycles
Your kick is a measuring tape. Learn how many cycles it takes you to cover a known distance, and you can estimate how far you have traveled without seeing a thing.
Notice natural landmarks
- Ripples in the sand run perpendicular to the current or surge.
- Coral and sponges often grow facing the same direction.
- The slope of the bottom tells you which way is deeper or shallower.
Practice these four habits together in shallow water, and navigation turns from a task into a quiet sense of where you are.