The northern half of the park will be re-opened, including the Lee Valley VeloPark, the Aquatics Centre and Cooper Box Arena, while the south section of the park will features a picturesque new tree-lined walkway, interactive water fountains, children’s playground and four themed walking trails.
Prince Harry's visit is significant given that he was a strong presence at many Olympic events in the summer of 2012.
A keen sportsman himself, Harry attended the athletics, Paralympic swimming, races in the velodrome, beach volleyball and also supported his cousin Zara Tindall as she rode to silver medal success as part of the British Equestrian team.
The royal also accompanied the Duchess of Cambridge at the games' closing ceremony as Prince William carried out his RAF Search and Rescue duties in Anglesey.
Harry's London engagement is his first since he jetted off for a romantic skiing break with his girlfriend Cressida Bonas.
The couple flew by helicopter to the exclusive resort of Shymbulak, a luxury chalet located in the mountains above the city of Almaty.