Port protection can be enhanced with the establishment of a dedicated shallow-water testbed to evaluate new acoustic and light-based technologies. Efforts are underway at the Naval Undersea Warfare Center to create the Gould Island Acoustic Observatory in Narragansett Bay, capable of validating emerging security technologies. The immediate goal is to obtain long-duration, continuous, real-time monitoring of detection performance against various threats (surface craft, AUVs, divers) in a relatively harsh, shallow water environment. Time-variant observables from various technologies will be obtained, typically as wideband time series data, with synopticity of ambient oceanographic data (wind and waves, sound speed, internal waves, tidal mixing, turbulence, optics). This data will be made available, via secure intranet connections, to government, industry, and university researchers. The long term goal is to validate new technologies and appropriate signal processing algorithms, using data collected from a well-characterized shallow water environment.