So.
Lots of folk telling y'all how awesome their dizzys are here.
I have to disagree, i tried for years with various sprays/greases/rubber gloves/cable ties/you name it/plastic shields/drain holes blocked up and the dizzy cap was sealed on with silicone and fresh air supplied AND vacuum vented at one time and then supplied by compressed air and still no matter what, if the dizzy was chilled you would get condensation on the inside from the crankcase vapours
and it would miss its cock off
but
the original question is snorkel and yes if you go anywhere near water you should fit a snorkel, why wouldnt you?
bent conrods are a lot worse than misfires!