I look at the torrential water surging past, thinking ‘Oh no, surely we haven’t got to get back in and paddle again.’ But that is exactly what we have to do, with the disadvantage that all but three of the dozen or more paddles have been swept away. I use one, the guide uses one, and someone else has one. After a time, and with some difficulty, we reach the allotted spot, and manage with effort to put in. We clamber up the steep bank to where a vehicle is waiting on a rough track, and get in. The heating is working full blast. Our rescuers are anxious, and sollicitous. They fear shock or its after-effects, I think. As we drive back along the rough earth track, beginning to warm up, Sarah, who happens to be sitting in the front seat, begins to sing. ‘Summertime’.