REGISTRATION opens today for the North Weald Race for Life.
The women-only run, which raised more than £1.5m in Essex for Cancer Research UK last year, will set off at North Weald Airfield on July 3.
Entrants are encouraged to wear pink for the event, which will take place at more than 230 venues across the country, and can choose to walk, jog, or run over a 5km or 10km route.
Gill Burgess, Cancer Research UK's Essex events manager, said: "There are over 200 cancers and we won't give up until we find cures for them all."
The charity worker added: "We are very grateful to everyone who took part last year and in the past. Thanks to them Cancer Research UK has been able to make progress against many forms of the disease. But the battle against cancer never stops and for this reason we need everyone to return in 2013 and bring new recruits with them."
This year, organisers are looking for 21,800 women across the county to take part.
Race for Life is suitable for women of all shapes, sizes, ages and levels of fitness and is described as "non-competitive".
Entry costs £14.99 for adults and £10 for girls under 16.
To enter Essex Race for Life visit www.raceforlife.org or call 0845 600 6050.