When emergency medical help is far away, onboard safety becomes essential. Sudden cardiac arrest can happen anywhere, at home, at work, in public spaces, and also while people are spending time at sea. But when it happens on a boat, yacht, or inside a marina area, the emergency response process becomes more challenging. Unlike incidents on land, professional medical help may not be able to arrive within minutes. Distance from shore, weather conditions, evacuation time, and limited onboard...