Summertime recreating is a fun way to stay cool in the heat, but before you dive in, take a moment to absorb some important information about natural bodies of water to protect yourself and the marine life sharing the water with you.

A new report from the U.S. Centers for Disease Control and Prevention (CDC) declares a new and challenging front in the ongoing war on waterborne disease. Overall, however, the news from the battlefield is encouraging.

It’s important you know the rules of your favorite watering hole.