Japan has many cutting-edge deep-sea exploration technologies. A variety of methods are being used to investigate the world's oceans and provide mankind with new scientific knowledge. Efforts have recently been made to explore the deepest parts in the forbidding hadal zone. Join us as we take an up-close look at the SHINKAI 6500, a manned submersible that is currently on land for maintenance, and get the latest research information from Dr. Asahiko Taira, the president of the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). A particular highlight is the structure of a next-generation submersible that will be capable of reaching virtually any depth!