Thames at Sonning Bridge at dawn. THE WATER CALLS ME CONSTANTLY. So. Starting from today, through the medium of the LOOP, we shall chronicle the reflections of a handful of swimmers. These are the extended family of The Swim Shed; ordinary people who have an extraordinary connection with water. Mark has been a friend of ours for over 25 years. Swimming is a way of life to him. I cannot remember a time when swimming has not been a part of my life. It has run down the family fr