ARHEA (Advanced Drifter GPS Oceanography Coverage Area) is a sophisticated drone developed in Indonesia to track seawater conditions while drifting and diving along ocean currents. Developend since 2016, it has been created through a collaboration between the Department of Marine Science at the Faculty of Fisheries and Marine Sciences at Padjadjaran University (Unpad), the Marine Science Institute (MSI) at the University of the Philippines, and PT Robo Marine Indonesia. ARHEA is designed to deliver precise, real-time oceanographic data.