I got the feeling that we were pushing in to a current, but it was very hard to tell. For every boat length we move forward, the boat’s weight in water has to move from in front to behind us. In a shallow, narrow canal the water rushes backwards along the side of the boat pretty quickly. We were in a particularly narrow section when I was surprised to see a boat coming the other way. We both came to a stop but the other driver beckoned me on. There was just enough room to squeeze past – Narrow Escape.