I  can understand in some situations a snorkel can be a hindrance. For
example I have dived sinkholes in the Nullabore and yes a snorkel supposedly
was  a catch hazard ( I will never do it again it scared the sh.t out of me
and if you want to do this for fun good on you ) and the ...

I have a busibess trip to Hamilton Island (White Haven beach) in
September...and I'll probably take a few days off while I'm there...  Since
I've recently taken up snorkeling...and bought all my gear...I was thinking
of taking my stuff and doing some snorkeling whilst there...and ...

I need a video demonstrating Boyle's Law to show to my Royal Ranger kids.
Anybody have a link to a video of a balloon expanding and exploding when
released from depth?