The old water ferry no longer runs, but Queensferry remains the croseng point for modern-day travelers in their motorized machines.
The Queensferry no longer runs so travelers have to find other ways across.  
mnli hypothesis: The Queensferry no longer runs so travelers have to find other ways across.   premise: The old water ferry no longer runs, but Queensferry remains the croseng point for modern-day travelers in their motorized machines.