how fast is the spirit of tasmania

The Spirit of Tasmania typically cruises at around 27 knots (about 50 km/h), because Bass Strait prefers brisk over bonkers. The overnight hop between Geelong and Devonport usually runs 9–11 hours, weather and schedules doing their usual dance. It’s built for steady and comfy rather than record-breaking, which your stomach will thank it for. Think of it as a floating highway with better views and fewer potholes. Consult official documentation for exact figures.