Learn about the incredible achievements of two deep-sea explorers as oceanographer Don Walsh and his son, Kelly Walsh, are interviewed by British journalist Anne Diamond. In 1960—along with Swiss engineer Jacques Piccard—Don and Jacques became the first people to reach to the deepest place on earth, the Challenger Deep in the Mariana Trench. Following in his father’s footsteps, Kelly repeated the same feat in 2020 during an emotional dive on board the submersible Limiting Factor. Watch as Don and Kelly uncover the secrets of the ocean floor and discuss their other explorations around Antarctica while answering viewers’ questions.