Check local news websites or online news portals to see if there have been any reports of accidents at beaches that might match the context you're looking for.
Claire ignored her own safety. She pulled Brianna parallel to the shore, kicking with a ferocity that seemed impossible for a woman of fifty-two. Each stroke was a prayer. Each breath a defiance. momcomesfirst240528briannabeachtheaccide link
They started wading toward the shore, but the sand under Brianna’s foot suddenly dropped away. A gasp, a stumble, and then the current grabbed her like a fist around the ribs. She was yanked sideways, then under. Salt burned her nose. The sky became a spinning coin above her. Check local news websites or online news portals