There were many moored boats on the moorings just beyond the water point. When we realised that we had just passed the last opportunity, I used some heavy reverse to stop, and then started to go back. The canal was very shallow here and I ended up aground at the stern. Despite my best efforts, I couldn’t stop the nose of Bartimaeus bumping (gently) into the boat we were alongside. No harm done, but it was embarrassing. A working bow thruster would have saved us.