Why should you do first when a vessel capsizes?
After the boat capsizes, you should immediately do a head count to make sure everyone is with the boat. The general rule is to ensure that all crew members are wearing PFDs and that they stay with the boat; there may be possibilities of righting it, and rescuers will be able to find you more easily.
What should u do when a vessel capsizes?
If your vessel does capsize, make sure everyone is accounted for and stays with the boat. Don't panic and try to swim for shore. A capsized vessel may recover on its own and most trailer-sized vessels will remain afloat, even when flooded or over-turned.