Beacon and Buoy Are Keeping Swimmers Safe During the Dog Days of Summer | NBC Nightly News: Kids Edition

Beat the heat! With temperatures sizzling in part of the country, this is what you need to know to stay cool and safe. Also, we talk about brain freeze! We explain the science behind the ice cream headache. Then, meet Beacon and Buoy! They are the country’s very first canine lifeguards! Plus, helping hand — we introduce you to these kids who are mowing lawns to help the elderly and those in need. Thrill ride! Come along as we scream our way into the history of this popular amusement park ride — the rollercoaster!