In 2005, I attempted - and completed, a 'Rowing Marathon'.  A rowing marathon is simply rowing the distance of a standard marathon, some 26 miles.  To be exact, it's 42,195 metres!  I trained quite hard for this and eventually settled on a target time (the night before) of 2 hrs and 8 mins.  The actual event was the same day day as the London Flora Marathon and I did my bit, on line with other rowers, whilst watching the 'real' marathon on the tele.  (See separate article for the details).  My actual finish time was 2:07 and some seconds.  Fantastic.