Ceremony of the Keys is the one that takes place every night at the Tower of London and has done so in some form or another since the 14th century. At exactly 9.53pm, the Chief Yeoman Warder, dressed in Tudor Watchcoat, meets the military escort, made up of members of the Tower of London Guard. Together, the Chief Yeoman Warder and the Yeoman Warder 'Watchman' secure the main gates of the Tower. Upon their return down Water Lane, the party is halted by the sentry and challenged to identify themselves:

Sentry: "Halt! Who comes there?"

Chief Warder: "The keys."

Sentry: "Whose keys?"

Chief Warder: "Queen Elizabeth's keys."

Sentry: "Pass Queen Elizabeth's Keys. All is well."

Following this, the party makes its way through the Bloody Tower Archway into the fortress, where they halt at the bottom of the Broadwalk Steps. On the top of the Stairs, under the command of their officer, the Tower Guard present arms and the Chief Warder raises his hat, proclaiming:

Chief Warder: "God preserve Queen Elizabeth."

Sentry: "Amen!"

He then takes the keys to the Queen's House for safekeeping, while the Last Post is sounded.