The attention of the Soviet reader is offered a detailed story about ocean research carried out under the guidance of the famous American engineer Edwin Link. The book contains a large amount of factual material that has not previously been published in Russian literature. The design of the Deep Diver and Johnson Sea Link underwater vehicles is considered and a description of the underwater research support vessel is given. Especially for the Russian edition, the author wrote an epilogue. The book is designed for design engineers, research engineers engaged in the creation of deep-sea vehicles, the study of the ocean. However, the relevance of the content, simplicity and fascination of the presentation make it interesting for a wide range of readers.