Water Sports Camp Heavy Period And Camp?

Heavy Period and Camp? - water sports camp

So today I am going to the camp and in the water! We're on a boat, who knows how long and then I like sports. I know how to use tampons, but my time is very difficult and we must in this boat for 5 hours or more, what should I do? How long do you think could be on a boat, if we start in the afternoon?