Work will soon begin at Greenwich Park to prepare it to be the Olympic equestrian venue ahead of the London 2012 Olympic and Paralympic Games.
Work will be delivered by sub-contractors working for the London 2012 Olympic Organising Committee in association with the Royal Parks.
The project received approval from Greenwich Council in March 2010 for both the test event in 2011 and events in 2012.
The Royal Parks, English Heritage, Natural England and Sport England will serve as consultants on the scheme.
The route of the cross-country course will be marked out in August and work on improving the condition of the grass and reducing the hardness of the ground will be conducted.
Enhancement works to increase areas of acid grassland elsewhere in the park will also begin.