Wu Yung-sen said that after one completes all the above, everything basically boils down to luck. “I come back with nothing from most of my shoots.”

“My shooting depth is usually about 15-30 meters (50-100 feet), because the movement range of blackwater creatures is around 5 to 2000 meters (16 to 6,500 feet),” the photographer explained. “I can’t go any deeper than 45 meters (147 feet) because of the limitation of [my] diving equipment.”