Your next challenge is to improve the essential skill in snorkelling. That is a perfect way to get started. The benefit of this resting position is that during your long snorkelling trips you will be helped to save energy. It is important to test your skills on how to use the snorkel before wagging out into open water. Place your head under the water to immerse your snorkel below the surface. Maui Snorkeling offers excellent info on this. You can know the water gets into the barrel of snorkel. It’s important to hold your breath on at this point. I know it may seem unnatural to hold your breath with an open mouth but it is easy. Just keep this in mind when you notice water has reached the snorkel and never inhale it.
The next move is to clean out the snorkelling water. This can only be achieved after you’ve lifted the snorkel above the water level. For now, before you learn the skills required for snorkelling, never exhale while your snorkel is underwater when you run out of air, your instinct is to inhale, and what you get is water. So, raise the head without raising it out of the water and exhale rapidly into the snorkel, firmly and sharply. This would blow up the water from the tank of snorkels. This snorkel clearing blasting approach can extract almost all of the water from your snorkel. A second, forceful blast can remove any small amount of water left.
You should also keep in mind that even if you don’t immerse your head underwater, water can also enter the snorkel. Often some water can get in due to surfing conditions or unnecessary splashing. Therefore, one thing to bear in mind is to breathe carefully. You should clear any water coming into the snorkel by repeating the blasting process.
Often, while you may have some water left in the snorkel, if you slowly inhale and use airway control, you can breathe the air through the water until you have ample air for another hit. This ability to breathe through the tiny amount of water left in your snorkel, demonstrates you’ve mastered airway management and proper snorkelling clearing technique.