How do you loose a mask on a dive? In over fifty five years of diving, I have never known anybody to loose a mask while diving. I've had and seen them knocked off but we always just grabbed it and put it back on.
They didn't go thru a NAUI course

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How do you loose a mask on a dive? In over fifty five years of diving, I have never known anybody to loose a mask while diving. I've had and seen them knocked off but we always just grabbed it and put it back on.
His point is rarely is a snorkel actually required for such. One can back or side swim without issue.
If someone wants to use the snorkel they can but it is not required.
So surfacing away from the boat or exist point and using the snorkel to get back safely doesn't count (just one example)?
Nothing is required, you can always make do with something else but there are tools that make it much easier, more efficient, more convenient and safer.
If you are very low or out of air or distance to exit point is too far?Nope. A snorkel is not required in those instances. Breath off the reg or breath the air surrounding your head. How is a snorkel required for either?
If you are very low or out of air or distance to exit point is too far?
I just came out of a dive an hour ago. Should I have swam the 600 meters out using my air from tank to swim out? Same for coming back?
I don't know why, but I am always happy to see around here.I don't want to see what's swimming below without the ability to do anything about it
And anyway I've just spent an hour underwater had enough there's nothing left to see
Never said "everyone." For the average recreational diver outside overhead environment, it is essential.everyone NEEDS to have one is a false statement.
Never said "everyone." For the average recreational diver outside overhead environment, it is essential.