AOWD CHAPTER 2.07. CALCULATING DISTANCE

You must be able to accurately determine the distances you travel under water in order to complete underwater routes. To be successful, you need to propel yourself at a constant rate and consider the effect that currents have on your position. Two methods that can be...

AOWD CHAPTER 2.06. COMPASS: USE

Learning to use a compass is relatively easy. However, it is recommended to learn how to use it on the surface before using it underwater. Once you’ve learned the proper techniques on the surface, it will be much easier, and more enjoyable adapting what you’ve learned...