As we head in to summer, kids are often excited for one thing; swimming! But a new report from Safe Kids Worldwide and Nationwide's Make Safe Happen warns about drowning: families need to pay more attention to swimming safety in open water. The report — Hidden Hazards: An Exploration of Open Water Drowning and Risks for Children — finds that 43 percent of drowning occur in open water, such as quarries, oceans, lakes, rivers, retention ponds, reservoirs and ponds, and drowning in pools makes up 38 percent of drownings. What can parents do? Safe Kids Worldwide recommends teaching open water swimming, as well as pool swimming, and make sure as the parent you know the differences. Also, have a designated "watcher" who keeps an eye on swimmers the whole time they're in the water.