2. Development of Underwater Cable Observation Systems 2006 Preparation for coming international symposium UT'07 and SSC'07 Sep.2006: Participation in OCEANS’2006 Boston and exchange of information about underwater observatories connected with underwater cables and underwater robot system such as AUVs and ROVs ARENA: Submarine Cabled Seafloor Observatory Project in Japan JAMSTEC Cabled Observatory Off Hatsushima JAMSTEC Seismometer Integrated into Submarine Cable JAMSTEC Seafloor Node for Real Time Mobile System Constructed by ROV JAMSTEC Docking of Real Time Mobile System to Backbone Submarine Cable JAMSTEC