Once the SUB begins its descent, you will need to equalize the pressure in your ears similar to when you descended in the airplane on your trip here to Nassau. To do this you will pinch you nose, close your mouth and gently exhale into your nose. When you do this, you should feel your ears "click".
You can also try swallowing or moving your jaw around to release pressure.
Remember - equalize often during your descent. Do not wait for the pressure in your ears to become uncomfortable before you equalize. It is much easier to equalize if you do it often, in smaller increments, rather than waiting and trying to equalize a bigger change.
If your ears are feeling uncomfortable, please tell your dive leader. They will then take you up a few feet so that you can equalize before continuing your descent.
