Convoy of VIPs en route from St Paul's to Guildhall. Photo (c) Leon Wellman

Awaiting the VIPs from the Lord Mayor's Reception at the Guildhall for the trip to Trafalgar Square. Photo (c) Leon Wellman

Ready to depart with police escort. Photo (c) Leon Wellman

Getting ready to take the VIPs from the Trafalgar Service at St Paul's Cathedral to the Lord Mayor's Reception at the Guildhall. Photo (c) Leon Wellman

The parade ground at Wellington Barracks, just after Changing of the Guard and before transformation into a bus depot. Photo (c) Leon Wellman

The first busloads of cadets from Portsmouth bases arriving at Wellington Barracks. Photo (c) Paul Dawson

Phil Stockley joyriding round Parliament Square in an Island Explorer. Photo (c) Leon Wellman

Bluestar Olympian in front of Wellington Barracks. Photo (c) Leon Wellman

A line-up of SBL buses having arrived with cadets from Portsmouth. Photo (c) Leon Wellman

More cadets arriving at Wellington Barracks. Photo (c) Leon Wellman

Once more round Parliament Square. Photo (c) Leon Wellman

Phil Stockley still joyriding in SV757. Photo (c) Leon Wellman

Trafalgar Square is somewhere in the distance through the traffic. Photo (c) Leon Wellman

Awaiting a large group to go from Whitehall to St Paul's Cathedral. Photo (c) Leon Wellman

Phil Stockley frightening the horses in SV757. Photo (c) Leon Wellman

Sadly, HRH The Queen preferred a more sedate form of transport. Photo (c) Paul Dawson

This is cheating. This pic was taken on an earlier test run - the buses didn't get into Guildhall Square on the actual event. Photo (c) Leon Wellman

More VIPs en route to the Guildhall. Photo (c) Leon Wellman

Nothing to do with T200. Leon showing off with the camera. Photo (c) Leon Wellman

Nothing to do with the London weekend, this was our control room in the Dockyard during the events in June and July. Photo: Paul Dawson