My $0.02.
First the argument about having one in rough seas is silly. I promise you, rough seas are not conducive to snorkeling. (gag, cough, spit, snort)
Long boat swim. We do so more effectively on our backs.
Watching for sharks. Never mind. Not even gonna go there.
Adrift. Better to be heads up scanning 360.
Down sides to a snorkel on the mask during the dive:
Overheads...forget about them.
I have seen divers confuse the snorkel mouthpiece with the mouthpiece of their second stage.
I personally grabbed my hanging snorkel instead of the BC inflater when I threw on a BC/tank in the water while snorkeling in the keys.
Diving in substantial current, the snorkel attached the mask can break the mask seal.
At the surface, while trying to manage a granny line or a tag line, you'll wish the snorkel was not there.
First the argument about having one in rough seas is silly. I promise you, rough seas are not conducive to snorkeling. (gag, cough, spit, snort)
Long boat swim. We do so more effectively on our backs.
Watching for sharks. Never mind. Not even gonna go there.
Adrift. Better to be heads up scanning 360.
Down sides to a snorkel on the mask during the dive:
Overheads...forget about them.
I have seen divers confuse the snorkel mouthpiece with the mouthpiece of their second stage.
I personally grabbed my hanging snorkel instead of the BC inflater when I threw on a BC/tank in the water while snorkeling in the keys.
Diving in substantial current, the snorkel attached the mask can break the mask seal.
At the surface, while trying to manage a granny line or a tag line, you'll wish the snorkel was not there.