The children sang at the traditional service in the Chapel of St Mary Undercroft in the Palace of Westminster.

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The miles passed surprisingly quickly, and soon I was heading past the View Tube, waving to scores of visitors who had come to see the park-in-progress, and on down into the undercroft of the athletics venue itself, where yet another broad smile spread across my face at the "Chariots of FIre" soundtrack being relayed on speakers as we circled beneath the stadium.

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