Another view on snorkels
I dislike snorkels. I would almost say I hate snorkels. I have a number of students who struggle with breathing (like many of us) -- they try a snorkel, and tra-la, the problem goes away. They say, well, I'll just use it to get ready for the tri next week (at least one local triathlon, bizarrely to me, allows snorkels in competition.) And they never get around to really learning to breathe. I'm sure snorkels can be used intelligently and usefully, but a lot of people, left to their own devices, just use them to put off learning to breathe, and waste all that time they could be using -- learning to breathe!