South Korean designer Lim Do-Hwi has conceptualized the Saver Whale, an innovative underwater drone designed to rescue drowning victims. This "rescue whale" serves as a lifeline buoy, delivering oxygen and real-time geolocation to guide rescuers swiftly to the scene.
Drowning can occur in as little as three minutes, as water enters the lungs leading to cardiorespiratory arrest. Time is critical for emergency responders. Recognizing this, Lim Do-Hwi developed the Saver Whale concept. In challenging access areas where traditional rescue is delayed, this drone navigates steep underwater terrain rapidly. Upon reaching the victim, it deploys as a holding buoy, supplying oxygen, providing a grip to surface, and helping alleviate panic.
Measuring 87.6 cm in length, the Saver Whale can be remotely controlled from a command center or air-dropped by helicopter for quick deployment. It autonomously activates, using sonar, radar, and radio to locate survivors, while geolocation enables rescuers to track its path. Equipped with a first-aid kit—including a life jacket, oxygen, walkie-talkie, and rope—it can also deploy a net to secure and tow victims to safety, countering currents. Multiple units can operate together, ideal for mass casualties like shipwrecks.
As Lim Do-Hwi shares on his Behance portfolio, the design pays homage to real-life orca rescues, blending nature-inspired innovation with cutting-edge technology.
Check out this concept video from Yanko Design: