Interstellar Spelunking Society (ISS)

The Interstellar Spelunking Society (ISS) is a specialist organisation operating across Quadrant 7, dedicated to the exploration and documentation of natural cave systems and subterranean structures on inhabited and uninhabited worlds.

Founded by a coalition of surveyors, geologists, and independent explorers, the ISS conducts expeditions to map underground environments, assess geological stability, and identify sites of scientific or historical interest.

The Society is particularly noted for its involvement in frontier regions, where subsurface exploration often intersects with resource discovery, archaeology, and hazard assessment. Its members maintain a reputation for operating in extreme conditions, frequently beyond the reach of formal colonial infrastructure.