Sainsbury’s Sport Relief Mile is due to set off from Rickmansworth Aquadrome on Sunday, March 23.
The event is expected to attract hundreds of runners who will all be raising money for Sport Relief, which helps to transform the lives of people in the UK and abroad.
Ryan Watson, mile organiser, said: "This is the third time the Sainsbury’s Sport Relief Mile has come to Rickmansworth.
"With a choice of one, three or six miles there is plenty of choice and distances to suit all ages and abilities so rope in your mates, family, boyfriend, girlfriend and colleagues too.
"There will also be a host of family fun activities on the day including face painting, beat the goalie, mile warm up and bouncy castles."
To enter, visit sportrelief.com