We developed a telemetry and remote-sensing instrument platform for a small vessel (6.1-m inboard jetboat) to collect fish telemetry and environmental data in real time as well as to collect data during habitat surveys in the Columbia River estuary. The instrumentation consisted of two acoustic telemetry hydrophones, an acoustic telemetry receiver, a conductivity–temperature–depth probe, an acoustic Doppler current profiler, a differential Global Positioning System, and a side-scan sonar integrated with an onboard portable computer. The system can be used on other vessels, has the flexibility to adapt to a range of telemetry and small oceanographic instrument systems, and allows for deployment and data collection from all instruments simultaneously.