While you are reading this article, the scientific research ship Shen Kuo is travelling in the deepest part of the world's oceans, carrying out a series of scientific explorations in the waters near the Mariana Islands known as “Challenger Deep”. A few weeks ago, some of the students and teachers from our school were very lucky to have the privilege to visit it while the SWATH (small waterplane area twin hull) ship rested at Luchao Port for three days. Not only did we learn about the seafaring life of the "Rainbow Fish", the 2018 Mariana Trench trial and scientific examination team, which was jointly formed by Shanghai Ocean University and West Lake University, but we also investigated deep-sea equipment and learnt about navigation.