FLEXUS aims at extending RAWFIE experimental infrastructure by providing a set of innovative high maneuverable, small-sized, one-man portable Unmanned Surface Vehicles (USVs), which will support coordinated networked operations and novel above water communications technologies. This USVs swarm will extend and enrich the type of test scenarios for water-based Internet of Things (IoT) platforms, where Machine-to-Machine (M2M) and Internet of Moving Things applications may use long-range single-hop communications and multi-hop radio networks.