Which device is commonly used by lifeguards to assist in rescues?

A rescue tube is a vital piece of equipment for lifeguards during rescue situations. It is a flotation device that allows the lifeguard to reach a distressed swimmer quickly and provide support while also enabling them to tow the individual back to safety. The design of the rescue tube makes it easy to grip and secure around the swimmer, ensuring both safety and stability.

Using a rescue tube can significantly enhance the effectiveness of a lifeguard's response, as it increases buoyancy for both the rescuer and the victim, ensuring they stay afloat until they can be brought to safety. This tool is specifically designed for quick deployment in emergencies, making it essential in the lifeguard's toolkit.

Other options, such as a diving board and swimming fins, do not provide the necessary support and flotation needed during a rescue. A snorkel, while useful for observing underwater, cannot assist in bringing someone to safety. Hence, the rescue tube stands out as an indispensable device for lifeguards in emergency situations.