Lee Valley White Water Centre in Hertfordshire has become the first Olympic venue to reopen to the public. The centre hosted canoe and kayak events for London 2012. To mark the occasion Team GB's gold medal-winning canoeist Etienne Stott returned to the scene of his triumph. Piers Hopkirk reports.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.