Cut on Toe: what to do?

I cut my big toe today while swimming. There was a rough spot where the different color tile for the cross on the wall and the lighter tile meet. Somehow my toe hit just the wrong spot on a turn and I gashed a big chunk out of my toe. It was bleeding a lot so I was forced to end my workout. :mad: Anyway, my question is what can I do to cover the toe so I can swim tomorrow? I don't want to reopen the wound, but I don't want to stay out of the water, either. I know anytime I've tried to swim with a Band-Aid it never makes it through an entire workout. Is there anything that will make it through a workout without falling off?