My husband had no problem with mask skills at all, but I tended to put my head in a position where I got water running down the base of my nose into my throat and choking me. It took some time to figure that one out. Turns out it's not a problem when actually DIVING, because I dive in a horizontal position, and I just plain can't push my head back far enough to cause the water to flow to my throat. It's the silly thing of kneeling on the bottom and tilting your head back that caused the issue.
Snorkeling without a mask is a great thing to practice before taking your class. Flooding a mask and clearing it is, too.
Snorkeling without a mask is a great thing to practice before taking your class. Flooding a mask and clearing it is, too.