In September there will be a little competition in Lake Garda, which will involve challenging 60 athletes to complete 1 Ironman event every day for 30 days (http://www.decaironitaly.com/). An Ironman consists of 2.4 mile (3.8km) swim, followed by a 112 mile (180km) cycle, and then a full marathon run. Apparently, the current record is set at only 11 consecutive Ironmans.
It blows my mind to think that a human body could be capable of such a feat as this. At the end anyone left will have swam from Liverpool to Leeds (72 miles), cycled from the northernmost point in Maine to San Diego (3360 miles) and run from Paris to Madrid (786 miles), all in 1 month. How can anyone train for such an event? Will this be the greatest human endurance achievement ever?