Hiroshi Kasuga, Lisa Hakataya, Hiroki Yokohata, The University of Tokyo Introduction On August 26 and 27, students and enthusiasts gathered at JAMSTEC headquarters in Yokosuka, Japan, to participate in the Underwater Robot Convention in JAMSTEC 2023. The convention, hosted by NPO Japan Underwater Robot Network, serves as a place for participants to exchange technical ideas and make connections through the competition and presentations of self-made underwater robots. The overview of the convention can be found on the official website [1] (in Japanese), and the conventions in previous years are reported in [2], [3], [4], [5], and [6]. We, the…