Dad used to play, both underwater and "normal". Just to mention, the ear protection isn't even remotely optional. Taking a fin across the ear is a good way to blow eardrums.

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And you, to whom adversity has dealt the final blow
With smiling [faces] lyin' to ye' everywhere ye' go
Turn to, and put out all your strength of arm and heart and brain
And like the Mary Ellen Carter, rise again.