Project SeaSentinel started in November 2021 as a continuation of a high school project named USV “Czajka”, made by Igor Rusiecki and Artur Kamieniecki. Main goal of this project is to create an Autonomous Surface Vessel capable of conducting water quality measurement operations in ports and coastal areas. We intend to take part in RoboBoat 2023 competition in Florida, USA. The competition is being organised by RoboNation Foundation and Office of Naval Research. It consists of pre-competition phase in which we must deliver our documentation and on-site competition phase in Sarasota, FL. On-site competition will consist of a series of tasks that our vehicle will need to complete fully autonomously. At the moment we are at the stage of designing and constructing our prototype.