The final round of the first Guangdong-Hong Kong-Macao Greater Bay Area Marine Underwater Robot Application Challenge was held in Zhuhai, Guangdong Province from March 28 to 29. It aims to accelerate the development of marine exploitation scenarios and establish a source for deep-sea technological innovation and industrial innovation. Participants were required to tackle challenges such as murky water and shifting ocean currents to complete tasks including underwater inspection, facility salvage and net cleaning.