http://greatbarrowchallenge.co.uk/how-it-all-began.html
Cycle, run or walk various distances over 4 days based around Bury St.Edmonds.
The biggest bike distance is 125 miles x 4 = 500 miles in 4 days over 4 different routes.
The biggest run distance is 26.2 miles x 4 over 4 different routes.
Wednesday 21st to Saturday 24th September.
Ohhh shame, I've got a 10 mile Time Trial on 24th.