A robotic lifeguard can navigate choppy surf with ease.
It's remote controlled by a human lifeguard and once it reaches the swimmer in distress, it acts as a floatation device providing support until a real lifeguard reaches the victim.
These units are already being used in California. It will be patrolling the waters of Rhode Island this summer—the first one on the east coast.
With training, these robotic lifeguards cost a little over $11, 000.