 The most important thing is do not panic. You want to relax. You want to try to get someone's attention. If you can't swim very well, you hopefully that there's some flotation nearby. But the most important thing is to call 911 and get the lifeguards rolling out and stay calm. That's where everyone loses it is that they get scared. They start exerting a lot of energy and then they go under or aspirate water and drown. So you can get out. They can be prevented. And they are something that is not life threatening. You know how to deal with them.