The paper proposes a GPS (Global Positioning System) tracking system for offshore fishing boats. The main objective of the proposed device is to minimize IUU (Illegal Unreported and Unregulated) fishing and develop sustainable fishing. There is a new demand in the world especially in Europe to import fish products only from sustainable fishing sources. This new trend requires independent proof of the fishing methods and fishing locations. The developed device provides an independent verification and helps to verify the fishing vessel log book data. The propose device is a low cost GPS tracking and data recording system with basic and required functionalities. The system contains added facilities to provide an independent and comprehensive report of the fishing trips.