Simon Kelly who organises two annual extreme marathons - the Addo Elephant Trail Runs (a 50 miler and a 25 miler) and the Kalahari Augrabies Extreme Marathon (250km) will talk on his experiences The next Addo run is on 12 March 2011 (7th Addo Elephant Trail Run) The next Augrabies run is on 6 - 16 October 2011 (12th Kalahari Augrabies Extreme Marathon) See: http://www.extrememarathons.com/ http://www.extrememarathons.com/people.htm http://www.ultramarathonrunning.com/organisers/extrememarathons.html