There is an extremely high chance that they will either punch a hole through the ice with their foot, or they’ll just fall right through and get drenched. Help your friends out, try to prevent them from making dumb decisions.
Choppy Waters
Although keeping yourself out of dangerous situations is easiest when you physically avoid them, but if you must swim in the ocean on a day where the conditions are suboptimal, at least heed these warnings. Keep an eye out for long stretches of disturbed water, especially on days where the waves are rolling into each other. If you do see a channel of disturbed water stretching out past the shoreline, stay out of the water.