Abstract: A portable seismic vessel which is truck transportable to remote survey sites. The vessel is assembled with multiple self-contained, autonomous modules. Different modules provide crew quarters, dining facilities, propulsion, fuel and equipment storage. The vessel is capable of storing and deploying acoustic energy sources, seismic streamers, and recording equipment for processing seismic data. A unique ballast system accommodates structural flexing of the vessel. The vessel is uniquely suitable to efficiently access previously inaccessible survey sites and provides design flexibility in customizing the seismic vessel to unique operating requirements.