Tickets for these exclusive visits went on sale in February and have proved so popular that the Legacy Corporation today announced more dates, extending the tours until 23rd June.

The new Park In Progress Tour is a fantastic opportunity to get on to the former Olympic site and see the creation of this whole new part of London before the new Park begins to open to the public from July 2013.

From the moment visitors report to the site office, they will become part of the on-site team with a chance to don hard hats and high-visibility jackets for their visit.

The visit includes a site briefing and a trip to the ArcelorMittal Orbit viewing platforms where there is a new interactive experience telling the story of this extraordinary part of London.

Hundreds of local residents will visit the Park for a free preview of the tours tomorrow before the official opening on Friday. Tickets for the preview have been allocated by the neighbouring boroughs. The Legacy Corporation is also offering a local resident discount for the Tours, subject to availability.

Boris Johnson, Mayor of London, said:

“London’s wonderful Olympic Park is in the midst of a transformation to create a vibrant new area of the capital, providing new homes and jobs as well as a raft of new sporting and entertainment opportunities. We promised to give people opportunities to get back onto the park as soon as possible and it is no surprise that there is a huge appetite from Londoners for these fantastic Park in Progress tours offering a chance to see this exciting metamorphosis first hand.”

At 80 metres up the ArcelorMittal Orbit offer unique 360 degree views of the London skyline including St Paul’s Cathedral and Canary Wharf. On a clear day, you can see as far as Wembley Stadium in the north and Crystal Palace in the south.

The Olympic site is changing so rapidly that no two visits will be the same; already the Riverside Hockey Arena has been dismantled, the largest McDonalds in the world has gone and the temporary seating stands on the Aquatics Centre are being taken down.

In the coming months whole sections of the Park will be transformed with new cafes, community centres and gardens for people to enjoy.

These Tours are the only opportunity to visit the ArcelorMittal Orbit in 2013.

Park In Progress begins just in time for the Easter school holidays and continue through to 23 June 2013. Tours start on Good Friday – 29 March 2013 – just four months before Queen Elizabeth Olympic Park begins to open and approximately a year before the Park is fully open.

Adult tickets for Park In Progress will be the same price as during Games Time with a new discounted family ticket and concessions for senior citizens and students, children aged four and under go free and special group rates are also available.

Full details of the prices are below; the face value of the ticket is the price you pay as there is no booking fee.