Next week the Queen will become the longest-serving monarch in British history.

To mark the occasion, the Thames Festival Trust is organising a flotilla of historic vessels, leisure cruisers and passenger boats along the Thames from midday on Wednesday, 9 September.

The Totally Thames event will run between Tower Bridge and Houses of Parliament and feature vessels such as Havengore and Gloriana, which participated in the Queen’s Diamond Jubilee River Pageant in 2012, as well as the fireboat, Massey Shaw.

Spectators are being urged to line the riverbank to create a wave of applause as the boats pass.

Boat owners are invited to join the procession to celebrate the occasion, which will mark the 63 years and 216 days since The Queen came to the throne.

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The procession will begin east of Tower Bridge at midday, with the vessels sounding their horns for one minute.

The bridge will lift as a sign of respect and as the procession passes by HMS Belfast, a four gun salute will sound and Massey Shaw will shoot jets of water into the air.

The procession will end approximately 30 minutes later outside the Houses of Parliament with a final fanfare and ‘three cheers’.